Updated on 2024/02/09

写真a

 
KITAGAWA Daichi
 
Organization
Graduate School of Engineering Division of Science and Engineering for Materials, Chemistry and Biology Lecturer
School of Engineering Department of Chemistry and Bioengineering
Title
Lecturer
Affiliation
Institute of Engineering
Affiliation campus
Sugimoto Campus

Position

  • Graduate School of Engineering Division of Science and Engineering for Materials, Chemistry and Biology 

    Lecturer  2022.04 - Now

  • School of Engineering Department of Chemistry and Bioengineering 

    Lecturer  2022.04 - Now

Degree

  • Ph.D. ( Osaka City University )

  • Master (Engineering) ( Osaka City University )

Research Areas

  • Nanotechnology/Materials / Functional solid state chemistry  / 光機能有機材料化学

Research Interests

  • Photochromism

  • Photomechanical materials

  • Solid-state luminescence

Research subject summary

  • Synthesis and characterization of photochromic compounds that change their color upon photoirradiation.

Professional Memberships

  • 日本化学会

    2010.01 - Now   Domestic

  • 光化学協会

    2010.06 - Now   Domestic

  • アメリカ化学会

    2014.11 - Now   Overseas

  • 有機結晶部会

    2010.11 - Now   Domestic

  • 分子科学会

    2010.06 - Now   Domestic

Committee Memberships (off-campus)

  • 2023年度公益社団法人日本化学会近畿支部 幹事   公益社団法人日本化学会近畿支部  

    2023.03 - 2024.02 

  • 光化学若手の会 実行委員  

    2022.01 - 2023.06 

  • 現地実行委員   第61回放射線化学討論会  

    2018.09 

  • 現地実行委員   2015年光化学討論会  

    2015.09 

Awards

  • 日本化学会 欧文誌 (Bull. Chem. Soc Jpn.) 8月号 BCSJ賞

    2019.08  

  • 大阪市立大学 若手教員の教育研究活動分野の表彰

    2018.06  

  • 大阪市立大学 平成29年度南部陽一郎記念若手奨励賞

    2017.11  

  • 第32回井上研究奨励賞

    2016  

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    Country:Japan

  • 第35回 固体・表面光化学討論会 優秀講演賞

    2016  

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    Country:Japan

  • ICCOSS 2015 Young Scientist Award

    2015  

  • 日本化学会 優秀講演賞(学術)

    2015  

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    Country:Japan

  • 日本化学会 BCSJ賞

    2011  

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    Country:Japan

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Job Career (off-campus)

  • 日本学術振興会特別研究員(PD)   -

    2014.04 - 2015.03

  • 日本学術振興会特別研究員(DC1)   -

    2012.04 - 2014.03

Education

  • Osaka City University   Doctor's Course   Graduated/Completed

    2012.04 - 2014.03

  • Osaka City University   Master's Course   Graduated/Completed

    2010.04 - 2012.03

  • Osaka City University     Graduated/Completed

    2006.04 - 2010.03

Papers

  • Fabrication of Hyperbranched Photomechanical Crystals Composed of a Photochromic Diarylethene Reviewed

    M. Isobe, D. Kitagawa, S. Kobatake

    ChemPlusChem   88 ( 12 )   2023.12

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1002/cplu.202300428

  • Quantum Chemical Analysis of the Correlation between Electrode Potential and Redox Center of Li-Insertion Materials: Olivine, Layered and Spinel Structures, and Aqua-Complexes Reviewed

    K Ariyoshi, K Nishimura, D Kitagawa

    ChemElectroChem   10 ( 19 )   2023.10

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1002/celc.202300333

  • Diarylethene Photoswitches Undergoing 6π Azaelectrocyclic Reaction: Disrotatory Thermal Cycloreversion of the Closed-Ring Isomer Reviewed

    S Hamatani, D Kitagawa, S Kobatake

    Journal of Physical Chemistry Letters   14 ( 37 )   8277 - 8280   2023.09

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1021/acs.jpclett.3c02207

  • Mechanical properties and peculiarities of molecular crystals Reviewed International coauthorship

    W. M. Awad, D. W. Davies, D. Kitagawa, J. Mahmoud Halabi, M. B. Al-Handawi, I. Tahir, F. Tong, G. Campillo-Alvarado, A. G. Shtukenberg, T. Alkhidir, Y. Hagiwara, M. Almehairbi, L. Lan, S. Hasebe, D. P. Karothu, S. Mohamed, H. Koshima, S. Kobatake, Y. Diao, R. Chandrasekar, H. Zhang, C. C. Sun, C. Bardeen, R. O. Al-Kaysi, B. Kahr, P. Naumov

    Chemical Society Reviews   32 ( 9 )   3098 - 3169   2023( ISSN:03060012

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1039/d2cs00481j

  • Effect of α-Substitution on Dibenzoylmethanatoboron Difluoride on Evaporative Crystallization Reviewed

    F. Ito, Y. Mochiduki, Y. Fujimoto, D. Kitagawa, S. Kobatake

    Journal of Physical Chemistry C   2023( ISSN:19327447

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.3c07353

  • Prediction of Half-Life Time in Thermal Back Reaction of Photochromic Diarylbenzenes by Screening Approach Reviewed

    S Hamatani, D Kitagawa, T Nakahama, S Kobatake

    Bulletin of the Chemical Society of Japan   96 ( 5 )   496 - 502   2023( ISSN:00092673

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1246/bcsj.20230074

  • Edge-to-center propagation of photochemical reaction during single-crystal-to-single-crystal photomechanical transformation of 2,5-distyrylpyrazine crystals Reviewed

    K. Morimoto, D. Kitagawa, H. Sotome, S. Ito, H. Miyasaka, S. Kobatake

    Angew. Chem. Int. Ed.   61 ( 52 )   e202212290   2022.12

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

  • Effect of Substrate Surfaces for Crystal Growth of a Photochromic Diarylethene by Sublimation Reviewed

    M. Isobe, D. Kitagawa, S. Kobatake

    Crystal Growth and Design   22 ( 9 )   5489 - 5496   2022.09( ISSN:15287483

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

  • Patterning submicron photomechanical features into single diarylethene crystals using electron beam lithography Reviewed International coauthorship

    W. Li, D. Kitagawa, S. Kobatake, E. Bekyarova, C. J. Bardeen

    Nanoscale Horizons   7 ( 9 )   1065 - 1072   2022.06( ISSN:20556756

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1039/d2nh00205a

  • Performance of Composite Glass-Diarylethene Crystal Photomechanical Actuator Membranes Reviewed International coauthorship

    X. Dong, T. Guo, D. Kitagawa, S. Kobatake, P. Palffy-Muhoray, C. J. Bardeen

    ACS Applied Materials and Interfaces   14 ( 23 )   27149 - 27156   2022.06( ISSN:19448244

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

  • Spatial distribution of single guest molecules along thickness of thin films of poly(2-hydroxyethyl acrylate) Reviewed

    S. Ito, K. Hiratsuka, S. Takei, H. Nishi, D. Kitagawa, S. Kobatake, H. Miyasaka

    Photochemical and Photobiological Sciences   21 ( 2 )   175 - 184   2022.02( ISSN:1474905X

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

  • Fatigue Resistance of Photochromic Diarylethene in the Presence of Cyclodextrins with Different Pore Sizes Reviewed

    R. Miyamoto, D. Kitagawa, S. Kobatake

    Bulletin of the Chemical Society of Japan   95 ( 4 )   639 - 645   2022( ISSN:00092673

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

  • Cooperative Photochemical Reaction Kinetics in Organic Molecular Crystals Reviewed

    K. Morimoto, D. Kitagawa, C. J. Bardeen, S. Kobatake

    Chemistry - A European Journal   2022( ISSN:09476539

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/chem.202203291

  • Photochromic behavior of diarylbenzene nanoparticles prepared by top-down and bottom-up approaches Reviewed

    Hamatani Shota, Kitagawa Daichi, Maegawa Rikuto, Kobatake Seiya

    MATERIALS ADVANCES   2021.12

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/d1ma00972a

  • Correlating Reaction Dynamics and Size Change during the Photomechanical Transformation of 9-Methylanthracene Single Crystals Reviewed

    Morimoto Kohei, Kitagawa Daichi, Tong Fei, Chalek Kevin, Mueller Leonard J., Bardeen Christopher J., Kobatake Seiya

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   2021.11( ISSN:1433-7851

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202114089

  • Rational design of photochromic diarylbenzene with both high photoreactivity and fast thermal back reactivity Reviewed

    Maegawa Rikuto, Kitagawa Daichi, Hamatani Shota, Kobatake Seiya

    NEW JOURNAL OF CHEMISTRY   45 ( 40 )   18969 - 18975   2021.10( ISSN:1144-0546

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/d1nj04047b

  • Anisotropic bending and twisting behaviour of a twin crystal composed of a diarylethene Reviewed

    Higashiguchi Takuya, Kitagawa Daichi, Kobatake Seiya

    CRYSTENGCOMM   23 ( 34 )   5795 - 5800   2021.09

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/d0ce01705a

  • Light-Driven Rapid Peeling of Photochromic Diarylethene Single Crystals Reviewed

    Tamaoki Masato, Kitagawa Daichi, Kobatake Seiya

    CRYSTAL GROWTH & DESIGN   21 ( 5 )   3093 - 3099   2021.05( ISSN:1528-7483

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.cgd.1c00270

  • Fast T-Type Photochromic Crystals of Diarylbenzene Reviewed

    Hamatani Shota, Kitagawa Daichi, Kobatake Seiya

    JOURNAL OF PHYSICAL CHEMISTRY C   125 ( 8 )   4588 - 4594   2021.03( ISSN:1932-7447

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.0c10988

  • Light-Powered Autonomous Flagella-Like Motion of Molecular Crystal Microwires Reviewed

    Tong Fei, Kitagawa Daichi, Bushnak Ibraheem, Al-Kaysi Rabih O., Bardeen Christopher J.

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   2020.12( ISSN:1433-7851

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202012417

  • Symmetry Breaking and Photomechanical Behavior of Photochromic Organic Crystals Reviewed

    Kitagawa Daichi, Bardeen Christopher J., Kobatake Seiya

    SYMMETRY-BASEL   12 ( 9 )   2020.09

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.3390/sym12091478

  • Photoluminescence On/Off Switching of a Single Colloidal Quantum Dot Using Photochromic Diarylethene Reviewed

    Yano Nanoka, Yamauchi Mitsuaki, Kitagawa Daichi, Kobatake Seiya, Masuo Sadahiro

    JOURNAL OF PHYSICAL CHEMISTRY C   124 ( 31 )   17423 - 17429   2020.08( ISSN:1932-7447

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.0c05030

  • Nanosecond laser photothermal effect-triggered amplification of photochromic reactions in diarylethene nanoparticles Reviewed

    Ishibashi Yukihide, Nakai Shoki, Masuda Keisuke, Kitagawa Daichi, Kobatake Seiya, Asahi Tsuyoshi

    CHEMICAL COMMUNICATIONS   56 ( 52 )   7088 - 7091   2020.07( ISSN:1359-7345

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/d0cc00884b

  • Enhancement of coloring under ultraviolet irradiation in photochromic diarylbenzenes Reviewed

    Hamatani Shota, Kitagawa Daichi, Nakahama Tatsumoto, Kobatake Seiya

    TETRAHEDRON LETTERS   61 ( 24 )   2020.06( ISSN:0040-4039

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.tetlet.2020.151968

  • Photoreversible Birefringence Change of Diarylethene Single Crystals as Revealed by Change in Molecular Polarizability Anisotropy Reviewed

    Morimoto Kohei, Tsujioka Hajime, Kitagawa Daichi, Kobatake Seiya

    JOURNAL OF PHYSICAL CHEMISTRY A   124 ( 23 )   4732 - 4741   2020.06( ISSN:1089-5639

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpca.0c02774

  • Improving photosensitivity without changing thermal reactivity in photochromic diarylbenzenes based on accurate prediction by DFT calculations Reviewed

    Kitagawa Daichi, Takahashi Naoko, Nakahama Tatsumoto, Kobatake Seiya

    PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES   19 ( 5 )   644 - 653   2020.05( ISSN:1474-905X

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/d0pp00024h

  • Mechanical Actuation and Patterning of Rewritable Crystalline Monomer-Polymer Heterostructures via Topochemical Polymerization in a Dual-Responsive Photochromic Organic Material Reviewed

    Samanta Ranita, Kitagawa Daichi, Mondal Amit, Bhattacharya Manjima, Annadhasan Mari, Mondal Saikat, Chandrasekar Rajadurai, Kobatake Seiya, Reddy C. Malla

    ACS APPLIED MATERIALS & INTERFACES   12 ( 14 )   16856 - 16863   2020.04( ISSN:1944-8244

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsami.9b23189

  • Effects of Template and Molecular Nanostructure on the Performance of Organic-Inorganic Photomechanical Actuator Membranes Reviewed

    Dong Xinning, Guo Tianyi, Kitagawa Daichi, Kobatake Seiya, Palffy-Muhoray Peter, Bardeen Christopher J.

    ADVANCED FUNCTIONAL MATERIALS   30 ( 2 )   2020.01( ISSN:1616-301X

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adfm.201902396

  • Tuning of Optical Properties and Thermal Cycloreversion Reactivity of Photochromic Diarylbenzene by Introducing Electron-Donating Substituents Reviewed

    Nakahama Tatsumoto, Kitagawa Daichi, Kobatake Seiya

    JOURNAL OF PHYSICAL CHEMISTRY C   123 ( 51 )   31212 - 31218   2019.12( ISSN:1932-7447

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.9b09953

  • Photoluminescence ON/OFF Switching of CdSe/ZnS Core/Shell Quantum Dots Coated with Diarylethene Ligands Reviewed

    Seto Yuya, Yamada Rie, Kitagawa Daichi, Kim DaeGwi, Kobatake Seiya

    CHEMISTRY LETTERS   48 ( 11 )   1394 - 1397   2019.11( ISSN:0366-7022

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/cl.190634

  • Molecular design for a write-by-light/erase-by-heat recording system using photochromic diarylethenes with thermal cycloreversion Reviewed

    Sato Yuta, Kitagawa Daichi, Kobatake Seiya

    TETRAHEDRON   75 ( 35 )   2019.08( ISSN:0040-4020

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    We designed and synthesized photochromic diarylethenes for a write-by-light/erase-by-heat recording system. The introduction of polar substituents at both sides of the diarylethene maintained the photocyclization and photocycloreversion reactivities, but significantly affected the thermal cycloreversion reactivity. The introduction of electron-withdrawing substituents accelerated the thermal reaction and the introduction of electron-donating substituents suppressed the thermal reaction. The rate constants of the thermal reaction were well correlated with Brown-Okamoto's substituent constant σ+ that is a modified value of Hammett's substituent constant σ. The large rate constants are ascribed to the lower activation energy for the thermal reaction. These results provide new knowledge for the molecular design of diarylethenes for a write-by-light/erase-by-heat recording system.

    DOI: 10.1016/j.tet.2019.130487

  • Photoreversible Interference Color Modulation to Multicolor in Photochromic Molecular Crystals Reviewed

    Morimoto Kohei, Tsujioka Hajime, Kitagawa Daichi, Kobatake Seiya

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   92 ( 8 )   1299 - 1304   2019.08( ISSN:0009-2673

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Functional molecular crystals responsive to external stimuli represent a new frontier for material chemistry and crystal engineering. Here, we report on the photoreversible interference color change insingle crystals composed of a photochromic diarylethene derivative, 1,2-bis(2-ethyl-5-phenyl-3-thienyl)perfluorocyclopentene (1a). When crystal 1a was observed by rotating the sample stage at 45° from the extinction position under crossed Nicols, it showed an interference color. Upon irradiation with ultraviolet (UV) light, the interference color changed dramatically and instantaneously in response to photoirradiation due to the photocyclization reaction from the openring form to the closed-ring form. The change was quite sensitive to the photochromic reaction. It is attributable to the large decrease in retardation induced by the photocyclization reaction in crystals. These results might provide new opportunities for application of photochromic crystals.

    DOI: 10.1246/bcsj.20190114

  • Efficient "turn-off" fluorescence photoswitching in a highly fluorescent diarylethene single crystal Reviewed

    Ishida Sanae, Kitagawa Daichi, Kobatake Seiya, Kim Sunnam, Kurihara Seiji, Fukaminato Tuyoshi

    CHEMICAL COMMUNICATIONS   55 ( 40 )   5681 - 5684   2019.05( ISSN:1359-7345

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    A highly fluorescent diarylethene single crystal was successfully designed and prepared. The crystal shows efficient ‘‘turn-off’’ fluorescence photoswitching with full reversibility. This might have originated from the amplified fluorescence quenching due to the intermolecular energy transfer process in the densely packed and well-ordered single crystal.

    DOI: 10.1039/c9cc02441g

  • Cyclization reaction dynamics of an inverse type diarylethene derivative as revealed by time-resolved absorption and fluorescence spectroscopies Reviewed

    Sotome Hikaru, Kitagawa Daichi, Nakahama Tatsumoto, Ito Syoji, Kobatake Seiya, Irie Masahiro, Miyasaka Hiroshi

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   21 ( 17 )   8623 - 8632   2019.05( ISSN:1463-9076

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Photocyclization reaction dynamics of an inverse type diarylethene derivative was investigated in alkane solutions by means of ultrafast laser spectroscopies. Femtosecond transient absorption spectroscopy showed that the Franck–Condon state formed by photoexcitation is geometrically relaxed to a transient species within 100 fs and subsequently the cyclization process takes place with a time constant of 36 ps. This time constant is much longer than those in normal type derivatives. Steady-state and timeresolved fluorescence measurements with the aid of quantum chemical calculations revealed that there exist three kinds of conformers, one parallel and two anti-parallel forms, in the ground state. One of the anti-parallel conformers undergoes the cyclization reaction, while the other two conformers are nonreactive species and their major relaxation processes are radiative decay and intersystem crossing into the triplet states. The triplet states thus formed no longer undergo the cyclization reaction in the late time region.

    DOI: 10.1039/c8cp07393g

  • Photomechanical bending behavior of photochromic diarylethene crystals induced under polarized light Reviewed

    Hirano Akira, Kitagawa Daichi, Kobatake Seiya

    CRYSTENGCOMM   21 ( 15 )   2495 - 2501   2019.04( ISSN:1466-8033

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Materials that change their shape by external stimuli have been attracting much attention as artificial mesoscopic actuators. In particular, photoresponsive molecular crystals are promising materials as photoactuators. Although many kinds of crystals exhibiting photomechanical motions have been reported so far, in many cases, light is irradiated to the crystal homogeneously. The details of the effect of irradiation conditions have not been specifically examined. Herein, the effect of polarized ultraviolet (UV) light on the photomechanical bending motion of diarylethene crystals was investigated. The bending speed upon polarized UV light irradiation depended on the polarization angle. The dependence of the bending speed was well correlated with the absorption anisotropy of the open-ring isomer in the crystal, which indicates that the photochromic reaction depth from the crystal surface played an important role in controlling the bending speed.

    DOI: 10.1039/c9ce00175a

  • 1,2-Diarylbenzene as fast T-type photochromic switch Reviewed

    Kitagawa Daichi, Nakahama Tatsumoto, Nakai Yoshihiro, Kobatake Seiya

    JOURNAL OF MATERIALS CHEMISTRY C   7 ( 10 )   2865 - 2870   2019.03( ISSN:2050-7526

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Fast T-type photochromic molecules that isomerize only under photoirradiation are promising materials for ophthalmic lenses, real-time holography, security systems, and super-resolution fluorescence microscopy. In this study, we successfully developed a novel fast T-type photochromic molecular system, 1,2-diarylbenzene (DAB), by introducing tetrafluorobenzene to the ethene bridge unit of the typical P-type photochromic diarylethene. DAB changed from colorless to blue only when irradiated with ultraviolet light because it underwent photocyclization and fast thermal cycloreversion with a half-life of 130 ms at room temperature. The dramatic acceleration of thermal cycloreversion was due to the significant increase in the energy gap between the open- and closed-ring isomers and decrease in activation energy at the ground state. In addition, DAB could undergo fast photochromic reaction even in the solid state. Thus, introduction of a benzene ring to the ethene bridge unit would lead to the development of new functions for 6p-electron photochromic systems.

    DOI: 10.1039/c8tc05357j

  • Hybrid Organic Inorganic Photon-Powered Actuators Based on Aligned Diarylethene Nanocrystals Reviewed International coauthorship

    Dong Xinning, Tong Fei, Hanson Kerry M., Al-Kaysi Rabih O., Kitagawa Daichi, Kobatake Seiya, Bardeen Christopher J.

    CHEMISTRY OF MATERIALS   31 ( 3 )   1016 - 1022   2019.02( ISSN:0897-4756

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    When photochromic molecules are organized in a crystal, the small-scale forces generated by molecular photoisomerization events can combine together to generate work on micro- or macroscopic length scales. In this work, photomechanical nanocrystals themselves are organized on macroscopic length scales using a porous inorganic template. The organic diarylethene component provides the reversible photoresponse, whereas the porous alumina component provides structural support and directionality. This hybrid organic−inorganic photomechanical material acts as a bending actuator. Using ultraviolet and visible photons as power inputs, as little as 0.1 mg of reacted material generates enough force to tilt a 1.28 g mirror and steer a laser beam. The motion can be cycled multiple times in air and under water. Actuator figuresof-merit such as energy-to-work conversion efficiency and stiffness are probably limited by the high elastic modulus of the inorganic template, providing an obvious pathway for optimization.

    DOI: 10.1021/acs.chemmater.8b04568

  • Solid emission color tuning of polymers consisting of BODIPY and styrene in various ratios Reviewed

    Shimizu Katsuya, Kitagawa Daichi, Kobatake Seiya

    DYES AND PIGMENTS   161   341 - 346   2019.02( ISSN:0143-7208

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Random copolymers (poly(BOx-co-Sty)) consisting of boron dipyrromethene (BODIPY) monomer (BO) and styrene (St) were synthesized to achieve multi-color and efficient emission in the solid state using St as a spacer. The emission color of the resulting copolymers changed from green to red by changing the content of BO from 0.042 to 100 mol%. Fluorescence quantum yield (Φf) also increased with the content of St (Φf=0.05–0.88) because the intermolecular distance between the BO fluorophores became longer. The absorption and fluorescence properties of the copolymers in tetrahydrofuran were similar and independent of the compositional ratios, and Φf was relatively high (0.65–0.81), which indicates that the intermolecular interaction between BO fluorophores in the same polymer chain is small due to the lack of BO fluorophore aggregation. However, emission color changes in the bulk powder were mainly derived from the intermolecular interaction between BO fluorophores in inter-polymer chains because the polymers were intertwined with each other in the solid state. When the polymers in the solid state were annealed, the emission spectra were red-shifted and Φf decreased. It was concluded that the emission color changes of the polymers were mainly induced by intermolecular interaction between BO fluorophores in the inter-polymer chains.

    DOI: 10.1016/j.dyepig.2018.09.055

  • Crystallization-induced emission of 1,2-bis(3-methyl-5-(4-alkylphenyl)-2-thienyl)perfluorocyclopentenes: A mechanical and thermal recording system Reviewed

    Nakahama Tatsumoto, Kitagawa Daichi, Sotome Hikaru, Ito Syoji, Miyasaka Hiroshi, Kobatake Seiya

    DYES AND PIGMENTS   160   450 - 456   2019.01( ISSN:0143-7208

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Organic luminescent materials have attracted much attention due to potential application to organic optoelectronics. Search for new molecules with high fluorescence quantum yield in solid states is one of the most important tasks in the research field of the organic luminescent materials. Here, we newly synthesized diarylethenes, 1,2-bis(3-methyl-5-(4-alkylphenyl)-2-thienyl)perfluorocyclopentenes having methyl, ethyl, n-propyl, and n-butyl substituents at the p-position of phenyl rings, and investigated their fluorescence properties in the solid states. The diarylethenes in the crystalline phase exhibited strong fluorescence with relatively high fluorescence quantum yields (Φf) of 0.12–0.20 compared with those in the amorphous phase (Φf=0.064–0.069), which indicates that the diarylethenes have crystallization-induced emission (CIE) characteristics. The diarylethene having methyl group as the alkyl chain has the highest Φf value among the diarylethenes that we synthesized in this work. We found that the amorphous solid of the diarylethene having methyl group was crystallized after mechanical scratching followed by heating at 90 °C. We successfully demonstrated reversible fluorescence recording based on CIE characteristics and mechanical scratching and heating induced crystallization.

    DOI: 10.1016/j.dyepig.2018.08.031

  • Photomechanically Induced Magnetic Field Response by Controlling Molecular Orientation in 9-Methylanthracene Microcrystals Reviewed International coauthorship

    Fei Tong, Wenjing Xu, Maram Al-Haidar, Daichi Kitagawa, Rabih O. Al-Kaysi, Christopher J. Bardeen

    Angewandte Chemie International Edition   57 ( 24 )   7080 - 7084   2018.04

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work   International / domestic magazine:International journal  

    Asurfactant-assisted seeded-growth method is used to form single-crystal platelets composed of 9-methylanthracene with two different internal molecular orientations.The more stable form exhibits aphotoinduced twisting, as observed previously for 9-methylanthracene microribbonsgrown by the floating drop method. However,the newly discovered elongated hexagonal platelets undergo aphotoinduced rolling-up and unrolling.The ability of the rolled-up cylindrical shape to trap superparamagnetic nanoparticles enables it to be carried along in amagnetic field gradient. The new photoinduced shape change,made possible by anovel surfactant-assisted crystal growth method, opens up the possibility ofusing light to modulate the crystal translational motion.

    DOI: 10.1002/anie.201802423

  • Control of photomechanical crystal twisting by illumination direction Reviewed International coauthorship

    Daichi Kitagawa, Hajime Tsujioka, Fei Tong, Xinning Dong, Christopher J Bardeen, Seiya Kobatake

    Journal of the American Chemical Society   140 ( 12 )   4208 - 4212   2018.03

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Photomechanical molecular crystals have been investigated as mesoscopic photoactuators. Here, we report how the photomechanical twisting of 1,2-bis(2methyl-5-phenyl-3-thienyl)perfluorocyclopentene (1a) crystals depends on illumination direction. The ribbonlike crystal of 1a could be successfully prepared by a sublimation method. The ribbon crystal exhibited reversible photomechanical crystal twisting upon alternating irradiation with ultraviolet (UV) and visible light. Moreover, changing the UV illumination direction with respect to the crystal resulted in different twisting modes, ranging from helicoid to cylindrical. Control of photomechanical crystal deformation by illumination direction provides a convenient and useful way to generate a variety of photomechanical motions from a single crystal.

    DOI: 10.1021/jacs.7b13605

  • Photomechanical motion of diarylethene molecular crystal nanowires Reviewed International coauthorship

    Tong Fei, Kitagawa Daichi, Dong Xinning, Kobatake Seiya, Bardeen Christopher J.

    NANOSCALE   10 ( 7 )   3393 - 3398   2018.02( ISSN:2040-3364

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Crystalline nanowires composed of the photochromic diarylethene derivative 1,2-bis(2,4-dimethyl-5phenyl-3-thienyl)perfluorocyclopentene (1a) are prepared and characterized. 200 nanometer diameter wires with a length of 60 microns are grown by slow solvent annealing in a porous anodic aluminum oxide template. The nanowires are oriented crystals, as determined by X-ray diffraction measurements, and can be liberated by dissolving the template in acid. They exhibit pronounced bending when exposed to ultraviolet light that can be reversed by visible light irradiation. The bending–unbending sequence can be repeated for more than 10 cycles without fatigue. This robustness results from the ability of the nanowires to maintain their crystallinity during the forward and reverse reactions. The small diameter of these nanowires allows them to achieve curvatures that are at least 40 times greater (200 mm−1 versus 5mm−1) than those observed for micron-thick diarylethene needles. This first demonstration of photomechanical nanostructures based on diarylethene photochromism opens up the possibility of making more complicated structures composed of this high-performance photochrome.

    DOI: 10.1039/c7nr09571f

  • Solid-State Fluorescence Behavior Induced by Photochemical Ring-Opening Reaction of 1,2-Bis(3-methyl-5-phenyl-2-thienyl)perfluorocyclopentene Reviewed

    Nakahama Tatsumoto, Kitagawa Daichi, Sotome Hikaru, Ito Syoji, Miyasaka Hiroshi, Kobatake Seiya

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   91 ( 2 )   153 - 157   2018.02( ISSN:0009-2673

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1246/bcsj.20170322

  • Fluorescence On/Off switching in nanoparticles consisting of two types of diarylethenes Reviewed

    Nakahama Tatsumoto, Kitagawa Daichi, Sotome Hikaru, Ito Syoji, Miyasaka Hiroshi, Kobatake Seiya

    ACS Omega   3 ( 2 )   2374 - 2382   2018.02

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1021/acsomega.8b00238

  • Solvent effect of fluorescence on/off switching of diarylethene linked to excited-state intramolecular proton transfer fluorophore Reviewed

    Nakahama Tatsumoto, Mukaiyama Takayoshi, Kitagawa Daichi, Kobatake Seiya

    RESEARCH ON CHEMICAL INTERMEDIATES   43 ( 10 )   5321 - 5336   2017.10( ISSN:0922-6168

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1007/s11164-017-2928-1

  • Mechanical Behavior of Molecular Crystals Induced by Combination of Photochromic Reaction and Reversible Single-Crystal-to-Single Crystal Phase Transition Reviewed

    Kitagawa Daichi, Kawasaki Kaito, Tanaka Rika, Kobatake Seiya

    CHEMISTRY OF MATERIALS   29 ( 17 )   7524 - 7532   2017.09( ISSN:0897-4756

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1021/acs.chemmater.7b02558

  • Dependence of Photoinduced Bending Behavior of Diarylethene Crystals on Ultraviolet Irradiation Power Reviewed

    Hirano Akira, Hashimoto Takuya, Kitagawa Daichi, Kono Kenji, Kobatake Seiya

    CRYSTAL GROWTH & DESIGN   17 ( 9 )   4819 - 4825   2017.09( ISSN:1528-7483

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1021/acs.cgd.7b00755

  • Wavelength-selective and high-contrast multicolour fluorescence photoswitching in a mixture of photochromic nanoparticles Reviewed

    Ishida Sanae, Fukaminato Tuyoshi, Kitagawa Daichi, Kobatake Seiya, Kim Sunnam, Ogata Tomonari, Kurihara Seiji

    CHEMICAL COMMUNICATIONS   53 ( 59 )   8268 - 8271   2017.07( ISSN:1359-7345

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1039/c7cc02938a

  • Thiophene-S, S-dioxidized diarylethenes for light-starting irreversible thermosensors that can detect a rise in heat at low temperature Reviewed

    Kitagawa Daichi, Tanaka Koki, Kobatake Seiya

    JOURNAL OF MATERIALS CHEMISTRY C   5 ( 25 )   6210 - 6215   2017.07( ISSN:2050-7526

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1039/c7tc01261f

  • Polymorphs of a diarylethene that exhibits strong emission and direct visualization of polymorphic phase transition process by fluorescence color change Reviewed

    Kitagawa Daichi, Nakahama Tatsumoto, Mutoh Katsuya, Kobayashi Yoichi, Abe Jiro, Sotome Hikaru, Ito Syoji, Miyasaka Hiroshi, Kobatake Seiya

    DYES AND PIGMENTS   139   233 - 238   2017.04( ISSN:0143-7208

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1016/j.dyepig.2016.12.006

  • Fluorescence On/Off Switching in Polymers Bearing Diarylethene and Fluorene in Their Side Chains Reviewed

    Nakahama Tatsumoto, Kitagawa Daichi, Sotome Hikaru, Ito Syoji, Miyasaka Hiroshi, Kobatake Seiya

    JOURNAL OF PHYSICAL CHEMISTRY C   121 ( 11 )   6272 - 6281   2017.03( ISSN:1932-7447

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.6b12819

  • Strategy for Molecular Design of Photochromic Diarylethenes Having Thermal Functionality Reviewed

    Kitagawa Daichi, Kobatake Seiya

    CHEMICAL RECORD   16 ( 4 )   2005 - 2015   2016.08( ISSN:1527-8999

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/tcr.201600060

  • Photoinduced Rapid and Explosive Fragmentation of Diarylethene Crystals Having Urethane Bonding Reviewed

    Kitagawa Daichi, Okuyama Tomohiro, Tanaka Rika, Kobatake Seiya

    CHEMISTRY OF MATERIALS   28 ( 14 )   4889 - 4892   2016.07( ISSN:0897-4756

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.chemmater.6b02017

  • Photochromic reaction behavior and thermal stability of thiophene-S,S-dioxidized diarylethenes having a benzofuryl group Reviewed

    Tanaka Koki, Kitagawa Daichi, Kobatake Seiya

    TETRAHEDRON   72 ( 18 )   2364 - 2368   2016.05( ISSN:0040-4020

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.tet.2016.03.062

  • Photoinduced stepwise bending behavior of photochromic diarylethene crystals Reviewed

    Kitagawa Daichi, Tanaka Rika, Kobatake Seiya

    CRYSTENGCOMM   18 ( 38 )   7236 - 7240   2016( ISSN:1466-8033

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c6ce00607h

  • Optical properties and solvatofluorochromism of fluorene derivatives bearing S,S-dioxidized thiophene Reviewed

    Nakahama Tatsumoto, Kitagawa Daichi, Sotome Hikaru, Ito Syoji, Miyasaka Hiroshi, Kobatake Seiya

    PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES   15 ( 10 )   1254 - 1263   2016( ISSN:1474-905X

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c6pp00126b

  • Quantitative Evaluation of Photoinduced Bending Speed of Diarylethene Crystals Reviewed

    Kitagawa Daichi, Iwaihara Chika, Nishi Hiroyasu, Kobatake Seiya

    CRYSTALS   5 ( 4 )   551 - 561   2015.12( ISSN:2073-4352

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.3390/cryst5040551

  • Polymorphic Crystallization and Thermodynamic Phase Transition between the Polymorphs of a Photochromic Diarylethene Reviewed

    Iwaihara Chika, Kitagawa Daichi, Kobatake Seiya

    CRYSTAL GROWTH & DESIGN   15 ( 4 )   2017 - 2023   2015.04( ISSN:1528-7483

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.cgd.5b00196

  • Restricted diffusion of guest molecules in polymer thin films on solid substrates as revealed by three-dimensional single-molecule tracking Reviewed

    Ito Syoji, Taga Yuhei, Hiratsuka Kengo, Takei Satoshi, Kitagawa Daichi, Kobatake Seiya, Miyasaka Hiroshi

    CHEMICAL COMMUNICATIONS   51 ( 72 )   13756 - 13759   2015( ISSN:1359-7345

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c5cc03663a

  • Photoreversible current ON/OFF switching by the photoinduced bending of gold-coated diarylethene crystals Reviewed

    Kitagawa Daichi, Kobatake Seiya

    CHEMICAL COMMUNICATIONS   51 ( 21 )   4421 - 4424   2015( ISSN:1359-7345

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c5cc00355e

  • Dependence of photoinduced bending behavior of diarylethene crystals on irradiation wavelength of ultraviolet light Reviewed

    Kitagawa Daichi, Tanaka Rika, Kobatake Seiya

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   17 ( 41 )   27300 - 27305   2015( ISSN:1463-9076

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c5cp03073k

  • Thermodynamic Phase Transition Through Crystal-to-Crystal Process of Photochromic 1,2-Bis(5-phenyl-2-propyl-3-thienyl)perfluorocyclopentene Reviewed

    Kitagawa Daichi, Kobatake Seiya

    CHEMISTRY-AN ASIAN JOURNAL   9 ( 1 )   289 - 293   2014.01( ISSN:1861-4728

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/asia.201301020

  • Crystal thickness dependence of the photoinduced crystal bending of 1-(5-methyl-2-(4-(p-vinylbenzoyloxymethyl)-phenyl)-4-thiazolyl)-2-(5-methyl-2-phenyl-4-thiazolyl)perfluorocyclopentene Reviewed

    Kitagawa Daichi, Kobatake Seiya

    PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES   13 ( 5 )   764 - 769   2014( ISSN:1474-905X

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c3pp50417d

  • Alkyl substituent effects in photochemical and thermal reactions of photochromic thiophene-S,S-dioxidized diarylethenes Reviewed

    Shoji Hiroaki, Kitagawa Daichi, Kobatake Seiya

    NEW JOURNAL OF CHEMISTRY   38 ( 3 )   933 - 941   2014( ISSN:1144-0546

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c3nj01246h

  • Crystal Thickness Dependence of Photoinduced Crystal Bending of 1,2-Bis(2-methyl-5-(4-(1-naphthoyloxymethyl)phenyl)-3-thienyl)perfluorocyclopentene Reviewed

    Kitagawa Daichi, Kobatake Seiya

    JOURNAL OF PHYSICAL CHEMISTRY C   117 ( 40 )   20887 - 20892   2013.10( ISSN:1932-7447

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/jp4083079

  • Photoinduced Twisting of a Photochromic Diarylethene Crystal Reviewed

    Kitagawa Daichi, Nishi Hiroyasu, Kobatake Seiya

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   52 ( 35 )   9320 - 9322   2013.08( ISSN:1433-7851

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.201304670

  • Systematic study on the thermal cycloreversion reactivity of diarylethenes with alkoxy and alkyl groups at the reactive carbons Reviewed

    Shoji Hiroaki, Kitagawa Daichi, Kobatake Seiya

    RESEARCH ON CHEMICAL INTERMEDIATES   39 ( 1 )   279 - 289   2013.01( ISSN:0922-6168

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11164-012-0648-0

  • Morphology, wettability and photomicropatterning of superhydrophobic surface with high adhesive force by crystal growth of a photochromic diarylethene Reviewed

    Kitagawa Daichi, Kobatake Seiya

    CHEMICAL SCIENCE   3 ( 5 )   1445 - 1449   2012( ISSN:2041-6520

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c2sc20051a

  • Control of Surface Wettability and Photomicropatterning with a Polymorphic Diarylethene Crystal upon Photoirradiation Reviewed

    Kitagawa Daichi, Yamashita Itsuka, Kobatake Seiya

    CHEMISTRY-A EUROPEAN JOURNAL   17 ( 35 )   9825 - 9831   2011.08( ISSN:0947-6539

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/chem.201100385

  • Correlation between Steric Substituent Constants and Thermal Cycloreversion Reactivity of Diarylethene Closed-Ring Isomers Reviewed

    Kitagawa Daichi, Sasaki Kyohei, Kobatake Seiya

    The Chemical Society of Japan BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   84 ( 2 )   141 - 147   2011.02( ISSN:0009-2673

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    Publishing type:Research paper (scientific journal)  

    Two kinds of diarylperfluorocyclopentenes having 5-phenyl-2-propyl-3-thienyl and 2-isobutyl-5-phenyl-3-thienyl group as the aryl groups were newly synthesized, and the thermal stability of their closed-ring isomers was investigated. The bulkiness of the substituent (R) at the reacting positions in photochromic diarylethenes plays an important role in the thermal cycloreversion reactivity of the photogenerated closed-ring isomers. The steric substituent constant was introduced to investigate the relationship between the steric hindrance of the substituent R and the thermal cycloreversion reactivity. We employed three steric substituent constants, <i>E</i><sub>s</sub>(R), <i>E</i><sub>s</sub><sup>c</sup>(R), and <i>v</i>(R) values. We found that there is a good correlation between the <i>E</i><sub>s</sub><sup>c</sup>(R) value and the thermal cycloreversion reactivity. Furthermore, the <i>E</i><sub>s</sub>(CH<sub>2</sub>R) value has also a good correlation with the thermal cycloreversion reactivity, while <i>E</i><sub>s</sub>(R) has no correlation. These results indicate that the steric hindrance has an effect on the thermal cycloreversion and there is no hyperconjugation of the α-hydrogen on the 2-substituent on the thiophene ring. Moreover, the activation energy was also found to be related to the steric substituent constant. These findings would give a new useful strategy to design novel diarylethenes having desired thermal stability.

    DOI: 10.1246/bcsj.20100274

    CiNii Article

  • Photochromism of a Diarylethene with Methoxymethyl Groups at Reactive Carbons: Thermal Irreversible Reaction of the Closed-ring Isomer Reviewed

    Kitagawa Daichi, Kobatake Seiya

    The Chemical Society of Japan CHEMISTRY LETTERS   40 ( 1 )   93 - 95   2011.01( ISSN:0366-7022

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    Publishing type:Research paper (scientific journal)  

    A photochromic diarylethene having methoxymethyl groups at the reactive carbons was synthesized, and the thermal stability of the closed-ring isomer was examined. The closed-ring isomer of the diarylethene caused both the thermal cycloreversion and a thermally irreversible reaction at 120 °C. The structure of the thermal product was determined by <sup>1</sup>H NMR, MS, and X-ray crystallographic analysis.

    DOI: 10.1246/cl.2011.93

    CiNii Article

  • Photoinduced micropatterning by polymorphic crystallization of a photochromic diarylethene in a polymer film Reviewed

    Kitagawa Daichi, Yamashita Itsuka, Kobatake Seiya

    CHEMICAL COMMUNICATIONS   46 ( 21 )   3723 - 3725   2010( ISSN:1359-7345

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c0cc00061b

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Books and Other Publications

  • Photoresponsive Molecular Crystals for Light-Driven Photoactuators

    S. Kobatake, D. Kitagawa( Role: Joint author)

    Photosynergetic Responses in Molecules and Molecular Aggregates  2020 

  • Photomechanical Behavior of Photochromic Diarylethene Crystals

    S. Kobatake, D. Kitagawa( Role: Joint author)

    Mechanically Responsive Materials for Soft Robotics  2020 

  • Photoinduced mechanical motion of photochromic crystalline materials

    S. Kobatake, D. Kitagawa( Role: Joint author)

    Advances in Organic Crystal Chemistry, Comprehensive Reviews 2015, Eds.: R. Tamura, M. Miyata, Springer  2015 

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    Photochromic compounds undergo a photochemically reversible transfor-mation reaction between two isomers. Such molecules in organic crystals, which are regularly oriented and fixed in the crystal lattice, may be potentially useful for optoelectronic devices, such as optical memory, photoswitchable color filter, photoswitchable polarizer, photomechanical actuator, and so on. This chapter has focused on photochromism of the diarylethene crystals and their photomechanical phenomena, such as crystal bending and twisting.

MISC

  • Photoresponsive Organic Molecular Crystals International journal

    F. Tong, R. O. Al-Kaysi, D. Kitagawa

    Crystals   13 ( 2 )   2023.02

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    Authorship:Last author, Corresponding author   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.3390/cryst13020196

  • 光駆動マイクロマシンのための光応答性分子結晶 Invited

    北川大地, 小畠誠也

    光化学   48 ( 2 )   54 - 60   2017

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    Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Kind of work:Joint Work  

  • 分光便利帳: 3次元単一分子追跡法による高分子薄膜中ゲスト分子の拡散挙動・空間分布計測 Invited

    伊都将司, 平塚研吾, 多賀悠平, 竹井 敏, 北川大地, 小畠誠也, 宮坂博

    分光研究   65 ( 5 )   255 - 257   2016

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    Publishing type:Article, review, commentary, editorial, etc. (other)   Kind of work:Joint Work  

  • フォトクロミックジアリールエテンの光異性化を利用した微細結晶化パターニング

    小畠誠也, 北川大地

    化学工業   62 ( 4 )   313 - 317   2011

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    Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Kind of work:Joint Work  

Presentations

  • 逆さ型ジアリールエテンの光反応性に及ぼすアリール基の二面角の影響 Domestic conference

    菅沼美里, 北川大地, 濱谷将太, 五月女光, 伊都将司, 宮坂博, 小畠誠也

    基礎有機化学会 若手オンラインシンポジウム(第3回)  2023.12 

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    Presentation type:Oral presentation (general)  

    Venue:web開催  

  • Relationship between photocyclization reactivity and dihedral angle of aryl group in inverse type diarylethenes International conference

    Daichi Kitagawa, Misato Suganuma, Shota Hamatani, Hikaru Sotome, Syoji Ito, Hiroshi Miyasaka, Seiya Kobatake

    10th International Symposium on Photochromism (ISOP2023)  2023.11 

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    Presentation type:Poster presentation  

    Venue:Nara Prefectural Convention Center, Nara, Japan  

  • Change in photocyclization reactivity of an inverse type diarylethene derivative by inclusion into cyclodextrins International conference

    Misato Suganuma, Daichi Kitagawa, Shota Hamatani, Hikaru Sotome, Syoji Ito, Hiroshi Miyasaka, Seiya Kobatake

    10th International Symposium on Photochromism (ISOP2023)  2023.11 

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    Presentation type:Poster presentation  

    Venue:Nara Prefectural Convention Center, Nara, Japan  

  • Microscopic observation of the photochemical reaction of anthracene derivatives in single crystals International conference

    Sogo Kataoka, Daichi Kitagawa, Hikaru Sotome, Syoji Ito, Hiroshi Miyasaka, Seiya Kobatake

    10th International Symposium on Photochromism (ISOP2023)  2023.11 

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    Presentation type:Poster presentation  

    Venue:Nara Prefectural Convention Center, Nara, Japan  

  • Isolation and structure determination of minor byproducts produced by photochromic reaction of a diarylethene International conference

    Masashi Araki, Daichi Kitagawa, Seiya Kobatake

    10th International Symposium on Photochromism (ISOP2023)  2023.11 

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    Presentation type:Poster presentation  

    Venue:Nara Prefectural Convention Center, Nara, Japan  

  • Acceleration of thermal bleaching reaction of a diarylbenzene having methoxy groups by proton coordination International conference

    Yusuke Morimoto, Daichi Kitagawa, Seiya Kobatake

    10th International Symposium on Photochromism (ISOP2023)  2023.11 

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    Presentation type:Poster presentation  

    Venue:Nara Prefectural Convention Center, Nara, Japan  

  • Elucidation of the mechanism of unique photoinduced two-step bending behavior of diarylethene crystals International conference

    Keita Shimizu, Daichi Kitagawa, Seiya Kobatake

    10th International Symposium on Photochromism (ISOP2023)  2023.11 

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    Presentation type:Poster presentation  

    Venue:Nara Prefectural Convention Center, Nara, Japan  

  • Diarylethene photoswitches undergoing 6π azaelectrocyclic reaction: disrotatory thermal cycloreversion International conference

    Shota Hamatani, Daichi Kitagawa, Seiya Kobatake

    10th International Symposium on Photochromism (ISOP2023)  2023.11 

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    Presentation type:Poster presentation  

    Venue:Nara Prefectural Convention Center, Nara, Japan  

  • Development of novel T-type photochromic compounds based on 6π electrocyclic reaction International conference

    Daichi Kitagawa

    International Workshop for Nano- and Meso-Synergetic Molecular Systems  2023.11 

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    Presentation type:Oral presentation (general)  

    Venue:Nara Park Bus Terminal, Lecture Hall, Nara, Japan  

  • 逆さ型ジアリールエテンの光反応性とアリール基の二面角の関係 Domestic conference

    菅沼美里, 北川大地, 濱谷将太, 五月女光, 伊都将司, 宮坂博, 小畠誠也

    第31回有機結晶シンポジウム  2023.11 

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    Presentation type:Poster presentation  

    Venue:大阪大学吹田キャンパス銀杏会館  

  • ジアリールエテン結晶の特異的なフォトメカニカル挙動のメカニズム Domestic conference

    﨏本侑佳, 北川大地, 小畠誠也

    第31回有機結晶シンポジウム  2023.11 

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    Presentation type:Poster presentation  

    Venue:大阪大学吹田キャンパス銀杏会館  

  • 拡張型Finke-Watzkyモデルを用いたアントラセン誘導体単結晶における光反応の速度論解析 Domestic conference

    片岡壮吾, 北川大地, 五月女光, 宮坂博, 小畠誠也

    第31回有機結晶シンポジウム  2023.11 

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    Presentation type:Poster presentation  

    Venue:大阪大学吹田キャンパス銀杏会館  

  • ジアリールエテン結晶の特異的な光誘起二段階屈曲挙動のメカニズム Domestic conference

    清水啓太, 北川大地, 小畠誠也

    第31回有機結晶シンポジウム  2023.11 

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    Presentation type:Poster presentation  

    Venue:大阪大学吹田キャンパス銀杏会館  

  • Effects of substrate surfaces on vapor phase crystal growth of a photochromic diarylethene International conference

    Mami Isobe, Daichi Kitagawa, Seiya Kobatake

    International Symposium of the Graduate School of Engineering, Osaka Metropolitan University: World-Leading Engineering Research  2023.09 

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    Presentation type:Poster presentation  

    Venue:Osaka International Convention Center, Japan  

  • アントラセン誘導体単結晶の光反応進行過程の顕微鏡観察 Domestic conference

    片岡壮吾, 北川大地, 五月女光, 宮坂博, 小畠誠也

    第17回分子科学討論会  2023.09 

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    Presentation type:Poster presentation  

    Venue:大阪大学豊中キャンパス  

  • ジアリールエテンのフォトクロミック反応における 副生成物の単離と構造決定 Domestic conference

    荒木雅史, 北川大地, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • メトキシ基を有するジアリールベンゼンの熱退色反応のプロトン配位による加速 Domestic conference

    森本悠介, 北川大地, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • アントラセン誘導体単結晶における光反応の時空間解析 Domestic conference

    片岡壮吾, 北川大地, 五月女光, 宮坂博, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • ジアリールエテン結晶の特異的なフォトメカニカル挙動のメカニズム解明 Domestic conference

    﨏本侑佳, 北川大地, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • ジアリールエテン結晶における光誘起屈曲挙動の光照射波長依存性 Domestic conference

    清水啓太, 北川大地, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • ジアリールエテンポリマーを用いた光誘起変形材料の設計と合成 Domestic conference

    小石真士郎, 北川大地, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • ジアリールエテンを用いた光開始型温度センサーの高分子固体媒体中での熱退色反応挙動 Domestic conference

    亀田瑞季, 北川大地, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • 逆旋的熱開環反応を示すジアリールエテンのフォトクロミック反応挙動 Domestic conference

    濱谷将太, 北川大地, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • 逆さ型ジアリールエテンのフォトクロミック反応性に対するアリール基の二面角の影響 Domestic conference

    菅沼美里, 北川大地, 濱谷将太, 五月女 光, 伊都将司, 宮坂 博, 小畠誠也

    2023年光化学討論会  2023.09 

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    Venue:広島国際会議場  

  • Effect of Substrate on Vapor Phase Crystal Growth of Diarylethene and Photomechanical Behaviors of Rod Crystals International conference

    Mami Isobe, Daichi Kitagawa, Seiya Kobatake

    Twenty-Sixth Congress and General Assembly of the International Union of Crystallography (IUCr 2023)  2023.08 

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    Presentation type:Oral presentation (general)  

    Venue:Melbourne, Australia  

  • Photochromic Diarylethenes Undergoing 6π Azaelectrocyclic Reaction International conference

    Shota Hamatani, Daichi Kitagawa, Seiya kobatake

    The 31st International Conference on Photochemistry  2023.07 

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    Presentation type:Poster presentation  

    Venue:Sapporo Park Hotel, Sapporo, Japan  

  • 6πアザ電子環状反応を示すジアリールエテンのフォトクロミック反応挙動

    濱谷将太, 北川大地, 小畠誠也

    第44回光化学若手の会  2023.06 

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    Presentation type:Oral presentation (general)  

    Venue:いこいの宿 淡路島 津名ハイツ  

  • ジアリールエテンのフォトクロミック反応における副生成物の単離と構造決定

    荒木雅史, 北川大地, 小畠誠也

    第44回光化学若手の会  2023.06 

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    Venue:いこいの宿 淡路島 津名ハイツ  

  • 逆さ型ジアリールエテンのフォトクロミック反応挙動に及ぼすシクロデキストリンの影響

    菅沼美里, 北川大地, 小畠誠也

    第44回光化学若手の会  2023.06 

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  • ジアリールエテン単結晶の特異的なフォトメカニカル挙動

    﨏本侑佳, 北川大地, 小畠誠也

    第44回光化学若手の会  2023.06 

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    Venue:いこいの宿 淡路島 津名ハイツ  

  • 有機分子結晶における協同的光反応 Invited

    北川大地

    第29回光科学若手研究会  2023.05 

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    Presentation type:Oral presentation (invited, special)  

    Venue:神戸大学六甲台第2キャンパス  

  • 高強度パルスレーザー励起によるジアリールエテンナノ粒子コロイドの開環反応 Domestic conference

    松本 慎太郎、石橋 千英、北川 大地、小畠 誠也、朝日 剛

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • フォトクロミックジアリールエテンの気相結晶成長における中空結晶の枝分かれ形状に与える基板曲率および相対湿度の影響 Domestic conference

    磯辺 茉実、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • ジベンゾイルメタンフッ化ホウ素錯体の蛍光性メカノクロミズムに及ぼす置換位置の効果 Domestic conference

    伊藤 冬樹、梶原 佑太、藤本 悠史、伊藤 大智、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Presentation type:Oral presentation (general)  

    Venue:東京理科大学 野田キャンパス  

  • 低波数ラマン顕微鏡を用いた光メカニカル結晶の不均一光化学反応の構造追跡 Domestic conference

    尾座本 晋、五月女 光、森本 晃平、片岡 壮吾、北川 大地、小畠 誠也、宮坂 博

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • ペリレンジイミド誘導体の単一ナノ粒子発光挙動 International coauthorship Domestic conference

    射手矢 つきみ、蔭山 浩崇、Ali Eftekhari、Aude Bouchet、Michel Sliwa、濱谷 将太、北川 大地、小畠 誠也、五月女 光、伊都 将司、宮坂 博

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • 9-アントラアルデヒド結晶における協同的光反応の評価 Domestic conference

    片岡 壮吾、森本 晃平、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Presentation type:Oral presentation (general)  

    Venue:東京理科大学 野田キャンパス  

  • ジアリールエテンを用いた光開始型温度センサーのポリマーフィルム中での熱退色挙動 Domestic conference

    亀田 瑞季、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • 6πアザ電子環状反応を示すジアリールエテンの合成とフォトクロミック特性評価 Domestic conference

    濱谷 将太、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Presentation type:Oral presentation (general)  

    Venue:東京理科大学 野田キャンパス  

  • シクロデキストリンへの包接による逆さ型ジアリールエテンのフォトクロミック反応挙動 Domestic conference

    菅沼 美里、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • ジアリールエテン結晶の特異的な光誘起2段階屈曲挙動のメカニズム解明 Domestic conference

    清水 啓太、山内 裕介、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • ジアリールエテンの光閉環・光開環反応量子収率と分子構造の相関 Domestic conference

    四方 翔一朗、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • 酸存在下におけるジアリールエテンの熱開環反応機構の解明 Domestic conference

    流谷 健太、前道 啓之、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • ジアリールエテンのフォトクロミック反応における微小副生成物の単離と構造決定 Domestic conference

    荒木 雅史、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • 新規ジアリールエテンモノマーの合成と結晶フォトメカニカル挙動 Domestic conference

    﨏本 侑佳、北川 大地、小畠 誠也

    日本化学会第103春季年会  2023.03 

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    Venue:東京理科大学 野田キャンパス  

  • Photochemical Reaction Kinetics in Photomechanical Molecular Crystals Invited International conference

    D. Kitagawa

    7th IRP NanoSynergetics2 Workshop  2022.11 

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    Presentation type:Oral presentation (invited, special)  

    Venue:FIAP PARIS, France  

  • 種々のアントラセン誘導体の多結晶薄膜における協同的光反応 Domestic conference

    片岡壮吾, 森本晃平, 北川大地, 小畠誠也

    第30回有機結晶シンポジウム  2022.11 

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    Venue:名古屋大学  

  • 2,5-ジスチリルピラジン単結晶の不均一光化学反応に伴うフォトメカニカル挙動 Domestic conference

    森本晃平, 北川大地, 五月女光, 伊都将司, 宮坂博, 小畠誠也

    第30回有機結晶シンポジウム  2022.11 

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    Venue:名古屋大学  

  • 複屈折を利用した2,5-ジスチリルピラジン単結晶における不均一光化学反応の定量的評価 Domestic conference

    森本晃平, 北川大地, 五月女光, 宮坂博, 小畠誠也

    第12回CSJ化学フェスタ2022  2022.10 

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    Venue:タワーホール船堀  

  • ドデシル基を持つジアリールエテン結晶の光誘起往復屈曲のメカニズムの解明 Domestic conference

    坂東志保, 北川大地, 小畠 誠也

    第12回CSJ化学フェスタ2022  2022.10 

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    Venue:タワーホール船堀  

  • ジアリールエテンの開環反応量子収率の媒体および反応率依存性 Domestic conference

    片山紗稀, 北川大地, 小畠誠也

    第12回CSJ化学フェスタ2022  2022.10 

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    Venue:タワーホール船堀  

  • T型フォトクロミックジアリールベンゼンの熱戻り反応半減期の予測 Domestic conference

    濱谷将太, 北川大地, 小畠誠也

    第12回CSJ化学フェスタ2022  2022.10 

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    Venue:タワーホール船堀  

  • メトキシ基を有するジアリールベンゼンの熱退色反応におけるプロトン付加の影響 Domestic conference

    森本悠介, 北川大地, 小畠誠也

    2022年光化学討論会  2022.09 

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    Venue:京都大学桂キャンパス  

  • 数値シミュレーションによる2,5-ジスチリルピラジン単結晶の不均一光化学反応の解析 Domestic conference

    森本晃平, 北川大地, 五月女光, 宮坂博, 小畠誠也

    2022年光化学討論会  2022.09 

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    Venue:京都大学桂キャンパス  

  • 結晶中におけるジアリールエテン開環体の特異な吸収異方性とフォトクロミック反応挙動 Domestic conference

    清水啓太, 北川大地, 小畠誠也

    2022年光化学討論会  2022.09 

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    Venue:京都大学桂キャンパス  

  • フォトクロミックジアリールエテンの気相結晶成長により得られる球面基板上のロッド結晶集合体のフォトメカニカル挙動 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    2022年光化学討論会  2022.09 

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    Venue:京都大学桂キャンパス  

  • フォトクロミックジアリールベンゼンの熱戻り反応半減期の予測 Domestic conference

    濱谷将太, 北川大地, 小畠誠也

    2022年光化学討論会  2022.09 

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    Venue:京都大学桂キャンパス  

  • ジアリールベンゼンナノ粒子のフォトクロミック反応挙動 Domestic conference

    濱谷将太, 北川大地, 小畠誠也

    第43回光化学若手の会  2022.06 

  • ジアリールベンゼンの熱退色反応における溶媒依存性 Domestic conference

    森本悠介, 北川大地, 小畠誠也

    第43回光化学若手の会  2022.06 

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  • 結晶中でのジアリールエテン開環体の吸収異方性 Domestic conference

    清水啓太, 北川大地, 小畠誠也

    第43回光化学若手の会  2022.06 

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  • チオフェン酸化型ジアリールエテンのポリマーフィルム中での熱退色反応性 Domestic conference

    亀田瑞季, 北川大地, 小畠誠也

    第43回光化学若手の会  2022.06 

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  • ドデシル基を持つジアリールエテン結晶の光誘起往復屈曲挙動 Domestic conference

    坂東志保, 北川大地, 小畠誠也

    第43回光化学若手の会  2022.06 

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  • 1,2-ビス(2,5-ジメチル-3-チエニル)ペルフルオロシクロペンテンの気相結晶成長における中空結晶の形態形成機構 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    日本化学会第102春季年会  2022.03 

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  • ジアリールエテン光異性化を利用した光誘起変形を示すポリマーフィルム材料の作製と解析 Domestic conference

    根来弥優, 北川大地, 小畠誠也

    日本化学会第102春季年会  2022.03 

  • ジアリールエテンとカルバゾール誘導体を用いた固体状態での発光色の光スイッチング Domestic conference

    西 若菜, 北川大地, 小畠誠也

    日本化学会第102春季年会  2022.03 

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  • Photochromic behavior of diarylbenzene nanoparticles prepared by ball-milling and reprecipitation methods Domestic conference

    S. Hamatani, D. Kitagawa, S. Kobatake

    2022.03 

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  • 2,5-ジスチリルピラジン単結晶の不均一光化学反応 Domestic conference

    森本晃平, 北川大地, 五月女 光, 宮坂 博, 小畠誠也

    日本化学会第102春季年会  2022.03 

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  • Enhancement of coloring under ultraviolet irradiation in photochromic diarylbenzenes International conference

    Shota Hamatani, Daichi Kitagawa, Tatsumoto Nakahama, Seiya Kobatake

    2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)   2021.12 

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  • Photoinduced birefringence change of photoreactive organic crystals International conference

    Kohei Morimoto, Daichi Kitagawa, Seiya Kobatake

    2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)   2021.12 

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  • Recent progress in photomechanical diarylethene crystals Invited International conference

    Daichi Kitagawa, Seiya Kobatake

    2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)   2021.12 

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  • 新規ジアリールエテン結晶の特異的な2段階フォトメカニカル屈曲挙動 Domestic conference

    山内裕介, 北川大地, 小畠誠也

    第40回固体・表面光化学討論会  2021.12 

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  • ジアリールエテン単結晶の光誘起屈曲挙動における温度依存性 Domestic conference

    玉置将人, 北川大地, 小畠誠也

    第40回固体・表面光化学討論会  2021.12 

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  • 1,2 ビス(2,5-ジメチル-3-チエニル)ペルフルオロシクロペンテンの気相結晶成長に及ぼす基板表面の濡れ性の効果 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    令和3年(2021年)度日本結晶学会年会  2021.11 

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  • 1,2-ビス(2,5-ジメチル-3-チエニル)ペルフルオロシクロペンテンの気相結晶成長に及ぼす基板表面の濡れ性の影響 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    第50回結晶成長国内会議 (JCCG-50)   2021.10 

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  • Photochromic reaction behavior and improved fatigue-resistance of a diarylethene included in cyclodextrin with different pore sizes Domestic conference

    Ryotaro Miyamoto, Daichi Kitagawa, Seiya Kobatake

    2021年光化学討論会  2021.09 

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  • 9-メチルアントラセン薄膜結晶における協同的光反応の量子収率の測定とその評価 Domestic conference

    森本晃平, 北川大地, Fei Tong, Christopher J. Bardeen, 小畠誠也

    第29回有機結晶シンポジウム  2021.09 

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  • 高い光反応性と高速熱退色性を兼ね備えたジアリールベンゼンの合成 Domestic conference

    前川陸人, 濱谷将太, 北川大地, 小畠誠也

    2021年光化学討論会  2021.09 

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  • Fast T-type photochromic diarylbenzenes with various alkyl substituents in crystalline state Domestic conference

    Shota Hamatani, Daichi Kitagawa, Seiya Kobatake

    2021年光化学討論会  2021.09 

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    Presentation type:Oral presentation (general)  

  • 9-メチルアントラセン単結晶の協同的光反応過程とフォトメカニカル挙動の定量的評価 Domestic conference

    森本晃平, 北川大地, Fei Tong, Christopher J. Bardeen, 小畠誠也

    2021年光化学討論会  2021.09 

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  • 1,2-ビス(2,5-ジメチル-3-チエニル)ペルフルオロシクロペンテンの気相結晶成長に及ぼす基板の影響 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    2021年光化学討論会  2021.09 

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  • Light-driven rapid peeling of photochromic diarylethene single crystals Domestic conference

    Masato Tamaoki, Daichi Kitagawa, Seiya Kobatake

    2021年光化学討論会  2021.09 

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  • シクロデキストリンに包接されたジアリールエテンの光耐久性と空孔サイズの関係 Domestic conference

    宮本瞭太郎, 北川大地, 小畠誠也

    第37回シクロデキストリンシンポジウム  2021.09 

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  • 空孔径の異なるシクロデキストリンに包接されたジアリールエテンのフォトクロミック反応挙動と光耐久性 Domestic conference

    宮本瞭太郎, 北川大地, 小畠誠也

    第18回ホスト-ゲスト・超分子化学シンポジウム  2021.06 

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  • 9-メチルアントラセン薄膜単結晶の協同的光反応過程とフォトメカニカル効果との相関 Invited Domestic conference

    森本晃平, 北川大地, Fei Tong, Christopher J. Bardeen, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • ジアリールエテンの分子構造とフォトクロミック反応性の相関 Domestic conference

    四方翔一朗, 北川大地, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • ジアリールエテン単結晶による光誘起高速ピーリング挙動 Domestic conference

    玉置将人, 北川大地, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • 光書き込み/熱消去型ジアリールエテンのポリマーフィルム中での物性評価 Domestic conference

    山内裕介, 北川大地, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • 酸存在下におけるジアリールエテン閉環体の熱退色反応挙動 Domestic conference

    流谷健太, 前道啓之, 北川大地, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • ジアリールベンゼンの結晶高速フォトクロミズム Domestic conference

    濱谷将太, 北川大地, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • 高い光反応性と高速熱消色の両立を目指したジアリールベンゼンの合成と特性評価 Domestic conference

    前川陸人, 濱谷将太, 北川大地, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • ポリマーフィルム中でのジアリールエテンの開環反応量子収率の転化率依存性 Domestic conference

    片山紗稀, 北川大地, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • 1,2-ビス(2,5-ジメチル-3-チエニル)ペルフルオロシクロペンテンの気相結晶成長制御 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    第42回光化学若手の会  2021.06 

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  • Relationship between Cooperative Photodimerization Reaction Process and Size Change of 9-Methylanthracene Single Crystal Domestic conference

    Kohei Morimoto, Daichi Kitagawa, Fei Tong, Christopher J. Bardeen, Seiya Kobatake

    日本化学会 第101春季年会(2021)  2021.03 

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  • ジアリールベンゼンの結晶高速T型フォトクロミズム Domestic conference

    濱谷 将太、北川 大地、小畠 誠也

    日本化学会 第101春季年会(2021)  2021.03 

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  • ドデシル基を有するジアリールエテン結晶の特異な光誘起形状変化 Domestic conference

    東口拓矢, 北川大地, 小畠誠也

    日本化学会 第101春季年会(2021)  2021.03 

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  • パーフルオロアルキル基を有するジアリールエテン結晶のフォトメカニカル挙動 Domestic conference

    水口 貴文、北川 大地、小畠 誠也

    日本化学会 第101春季年会(2021)  2021.03 

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  • 1,2-ビス(2,5-ジメチル-3-チエニル)ペルフルオロシクロペンテンの結晶成長とフォトメカニカル挙動 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    日本結晶学会2020年度年会  2020.11 

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  • ジアリールエテン単結晶による光誘起高速ピーリングと剥離した薄膜結晶の光照射挙動との関係 Domestic conference

    玉置将人, 北川大地, 小畠誠也

    第39回固体・表面光化学討論会  2020.11 

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  • 1,2-ビス(2,5-ジメチル-3-チエニル)ペルフルオロシクロペンテンの結晶成長と光誘起屈曲挙動 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    第39回固体・表面光化学討論会  2020.11 

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  • ウンデシル基を有するジアリールエテン双晶の特異な光誘起結晶形状変化における双晶の接合面の影響 Domestic conference

    東口拓矢, 北川大地, 小畠誠也

    第39回固体・表面光化学討論会  2020.11 

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  • ジアリールベンゼンの高速結晶フォトクロミズム Domestic conference

    濱谷将太, 北川大地, 小畠誠也

    第39回固体・表面光化学討論会  2020.11 

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  • ジアリールエテン被覆型量子ドットの発光ON/OFF スイッチングにおける被覆数依存性 Domestic conference

    瀬戸佑弥, 北川大地, 金大貴, 小畠誠也

    第10回CSJ化学フェスタ2020  2020.10 

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  • 長鎖アルキル基を有するジアリールエテン双晶の特異な光誘起形状変化とそのメカニズム Domestic conference

    東口拓矢, 北川大地, 小畠誠也

    第10回CSJ化学フェスタ2020  2020.10 

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  • フォトクロミックジアリールベンゼンの光学および熱退色特性におけるアリール置換基の影響 Domestic conference

    濱谷将太, 北川大地, 中濱龍源, 小畠誠也

    第10回CSJ化学フェスタ2020  2020.10 

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  • ジアリールエテン単結晶による光誘起高速ピーリングの照射波長依存性 Domestic conference

    玉置将人, 北川大地, 小畠誠也

    第10回CSJ化学フェスタ2020  2020.10 

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  • シクロデキストリンに包接されたジアリールエテンのフォトクロミック特性と光耐久性向上 Domestic conference

    宮本瞭太郎, 北川大地, 小畠誠也

    第10回CSJ化学フェスタ2020  2020.10 

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  • 9-メチルアントラセン薄膜単結晶の光二量化反応に伴う複屈折変化 Domestic conference

    森本晃平, 北川大地, Tong Fei , Bardeen Christopher, 小畠誠也

    2020年web光化学討論会  2020.09 

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  • Photoinduced high speed peeling of single crystal composed of a diarylethene Domestic conference

    Masato Tamaoki, Daichi Kitagawa, Seiya Kobatake

    2020年web光化学討論会  2020.09 

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  • Effect of aryl substituents on the coloration in photochromic diarylbenzenes Domestic conference

    Shota Hamatani, Daichi Kitagawa, Seiya Kobatake

    2020年web光化学討論会  2020.09 

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  • Photochromic reaction behavior and fatigue-resistance of a diarylethene included in cyclodextrin Domestic conference

    Ryotaro Miyamoto, Daichi Kitagawa, Seiya Kobatake

    2020年web光化学討論会  2020.09 

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  • Optimization of functionals for accurate prediction of optical properties and thermal bleaching reactivity of photochromic diarylbenzenes by quantum chemical calculations Domestic conference

    Daichi Kitagawa, Naoko Takahashi, Tatsumoto Nakahama, Seiya Kobatake

    2020年web光化学討論会  2020.09 

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  • ジアリールエテン中空結晶の光誘起屈曲挙動 Domestic conference

    磯辺茉実, 北川大地, 小畠誠也

    2020年web光化学討論会  2020.09 

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  • ウンデシル基を有するジアリールエテン双晶の特異な光誘起形状変化とそのメカニズム Domestic conference

    東口拓矢, 北川大地, 小畠誠也

    2020年web光化学討論会  2020.09 

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  • アリール基に様々な複素芳香族環を有する1,2-ジアリールベンゼンの光学および熱退色特性 Domestic conference

    濱谷将太, 中濱龍源, 北川大地, 小畠誠也

    日本化学会第100回春季年会  2020.03 

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  • Photomechanical behavior of photochromic diarylethene crystals Invited Domestic conference

    Daichi Kitagawa

    日本化学会第100回春季年会  2020.03 

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  • 室温室内光下で光安定なマルチカラーフォトクロミックシステムの構築 Domestic conference

    西 若菜, 北川大地, 小畠誠也

    日本化学会第100回春季年会  2020.03 

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  • ジアリールエテン単結晶の光誘起高速ピーリング Domestic conference

    玉置将人, 北川大地, 小畠誠也

    日本化学会第100回春季年会  2020.03 

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  • ジアリールエテンの熱開環反応性に及ぼす反応部位第二級アルコキシ基のアルコキシ鎖長依存性 Domestic conference

    山内裕介, 北川大地, 小畠誠也

    日本化学会第100回春季年会  2020.03 

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  • 9-メチルアントラセン単結晶の光誘起複屈折変化 Domestic conference

    森本晃平, Tong Fei, 北川大地, Bardeen Christopher J., 小畠誠也

    日本化学会第100回春季年会  2020.03 

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  • ウンデシルオキシ基を有するジアリールエテン双晶の光誘起形状変化 Domestic conference

    東口拓矢, 北川大地, 小畠誠也

    日本化学会第100回春季年会  2020.03 

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  • 長鎖アルキル基を有するジアリールエテン双晶の光誘起形状変化 Domestic conference

    東口拓矢, 北川大地, 小畠誠也

    第28回有機結晶シンポジウム  2019.11 

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  • ジアリールエテン被覆量子ドットの発光ON/OFF スイッチングに おける被覆数依存性 Domestic conference

    瀬戸佑弥, 北川大地, 金大貴, 小畠誠也

    OCU先端光科学シンポジウム-ナノフォトニクスが切り拓く分子運動・化学反応制御の探求-  2019.10 

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  • 1,2-ジチアゾリルベンゼンのT型フォトクロミズム Domestic conference

    濱谷将太, 中濱龍源, 北川大地, 小畠誠也

    OCU先端光科学シンポジウム-ナノフォトニクスが切り拓く分子運動・化学反応制御の探求-  2019.10 

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  • Irradiation method dependence of photoinduced shape change of diarylethene crystals International conference

    Seiya Kobatake, Daichi Kitagawa , Akira Hirano

    9th Intenational Symposium on Photochromism  2019.09 

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  • Photoinduced Shape Change of Twin Crystals Composed of a Diarylethene Having a Long Alkyl Chain Domestic conference

    Takuya Higashiguchi, Daichi Kitagawa, Seiya Kobatake

    2019年光化学討論会  2019.09 

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  • Photomechanical behavior for diarylethene crystals with different size or morphology and diarylethenenanoporous template composite Domestic conference

    Mami Isobe, Daichi Kitagawa, Seiya Kobatake

    2019年光化学討論会  2019.09 

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  • Dependence of Photoluminescence Switching Properties of Quantum Dot Coated with Diarylethene on Coated Number Domestic conference

    Yuya Seto, Daichi Kitagawa, DaeGwi Kim, Seiya Kobatake

    2019年光化学討論会  2019.09 

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  • 極性置換基導入による1,2- ジアリールベンゼンの光学および熱退色特性制御 Domestic conference

    中濱龍源, 北川大地, 小畠誠也

    2019年光化学討論会  2019.09 

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  • Photo-Functional Materials using Photochromic Diarylethenes Invited International conference

    Daichi Kitagawa

    Inner Mongolia-Japan International Joint Research: Functional Molecular Chemistry Lecture Meeting  2019.08 

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  • Effect of Illumination Conditions on Photomechanical Response of Diarylethene Crystals International conference

    Daichi Kitagawa, Seiya Kobatake

    24th International Conference on the Chemistry of the Organic Solid State   2019.06 

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    Photomechanical molecular crystals have been investigated as mesoscopic photo-actuators. Although a lot of compounds showing photomechanical response have been reported so far, diarylethene derivatives are one of the most promising compounds because of their rapid response and durability. We have so far reported the photomechanical responses of diarylethene crystals such as contraction, expansion, bending, twisting, jumping, explosion, and so on. The next challenge is how we control the photomechanical responses. In this paper, we report the effect of illumination conditions such as illumination wavelength, power, and direction on the photomechanical responses of diarylethene crystals.

  • Mechanism of Photoinduced Birefringence Change in Diarylethene Single Crystals International conference

    Kohei Morimoto, Hajime Tsujioka, Daichi Kitagawa, and Seiya Kobatake

    24th International Conference on the Chemistry of the Organic Solid State   2019.06 

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  • ジアリールエテン結晶の光誘起結晶形状変化に及ぼす偏光照射の影響 Domestic conference

    平野 明, 北川大地, 小畠誠也

    日本化学会第99回春季年会  2019.03 

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  • ジアリールエテンを用いた光書き込み/熱消去型表示材料に向けた熱消去温度の制御 Domestic conference

    佐藤雄太, 北川大地, 小畠誠也

    日本化学会第99回春季年会  2019.03 

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  • ジアリールエテン被覆量子ドットのフォトクロミック反応に伴う発光スイッチングにおける被覆数依存性 Domestic conference

    瀬戸佑弥, 北川大地, 小畠誠也

    日本化学会第99回春季年会  2019.03 

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  • 長鎖アルキル基を有するジアリールエテン単結晶の光誘起形状変化 Domestic conference

    東口拓矢, 北川大地, 小畠誠也

    日本化学会第99回春季年会  2019.03 

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  • ヘキサン中におけるスピロピランの紫外光照射により生成する凝集体の構造および特性解析 Domestic conference

    水口貴文, 北川大地, 小畠誠也

    日本化学会第99回春季年会  2019.03 

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  • ジアリールベンゼンのフォトクロミズムと高速熱退色挙動 Domestic conference

    中濱龍源, 北川大地, 中井喜裕, 小畠誠也

    日本化学会第99回春季年会  2019.03 

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  • ジアリールエテンとフルオレン誘導体を内包したポリマー粒子の蛍光スイッチング特性 Domestic conference

    桐山貴至, 北川大地, 小畠誠也

    Bio Medical Forum 2019  2019.02 

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  • ジアリールエテン被覆量子ドットの発光スイッチングにおける被覆数依存性 Domestic conference

    瀬戸佑弥, 北川大地, 小畠誠也

    Bio Medical Forum 2019  2019.02 

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  • ジアリールエテン単結晶の光誘起複屈折変化のメカニズムの解明 Domestic conference

    森本晃平, 北川大地, 小畠誠也

    新学術領域「高次複合光応答」第8回公開シンポジウム  2019.01 

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  • ジアリールエテン結晶の光誘起屈曲挙動における偏光照射の影響 Domestic conference

    平野 明, 北川大地, 小畠誠也

    新学術領域「高次複合光応答」第8回公開シンポジウム  2019.01 

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  • Photochromic Diarylethene Crystals That Exhibit Unusual Photomechanical Behavior International conference

    Seiya Kobatake, Daichi Kitagawa

    10th Asian Photochemistry Conference (APC 2018)   2018.12 

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  • Change in Interference Color in Diarylethene Crystals upon Photoirradiation International conference

    Kohei Morimoto, Hajime Tsujioka, Daichi Kitagawa, Seiya Kobatake

    10th Asian Photochemistry Conference (APC 2018)   2018.12 

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  • Photomechanical Crystal Deformation of Diarylethenes with Polarized Light International conference

    Akira Hirano, Daichi Kitagawa, Seiya Kobatake

    10th Asian Photochemistry Conference (APC 2018)   2018.12 

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  • 熱および力学的刺激に応答する結晶化に基づく蛍光書き込み Domestic conference

    中濱龍源, 北川大地, 五月女 光, 伊都将司, 宮坂 博, 小畠誠也

    第27回有機結晶シンポジウム  2018.10 

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  • ジアリールエテン単結晶の光誘起屈曲挙動における照射紫外光偏光方向依存性 Domestic conference

    平野 明, 北川大地, 小畠誠也

    第27回有機結晶シンポジウム  2018.10 

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  • 置換基導入によるジアリールエテンの熱開環反応の制御 Domestic conference

    佐藤雄太, 北川大地, 小畠誠也

    第8回CSJ化学フェスタ2018  2018.10 

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  • 酸添加によるジアリールエテン誘導体の熱退色反応解析 Domestic conference

    櫻井桃香, 北川大地, 小畠誠也

    第8回CSJ化学フェスタ2018  2018.10 

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  • ジアリールエテンの光スタート型低温温度上昇センサー機能への極性置換基の影響 Domestic conference

    神野武史, 北川大地, 小畠誠也

    第8回CSJ化学フェスタ2018  2018.10 

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  • 2つのS,S-ジオキシドベンゾチオフェン基を有するジアリールエテンの高効率フォトクロミック反応 Domestic conference

    高橋直子, 北川大地, 小畠誠也

    第8回CSJ化学フェスタ2018  2018.10 

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  • ジヘテロアリールベンゼン誘導体のT 型フォトクロミズム Domestic conference

    塚原直也, 北川大地, 小畠誠也

    第8回CSJ化学フェスタ2018  2018.10 

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  • 偏光照射によるジアリールエテン結晶の光誘起結晶形状変化 Domestic conference

    平野 明, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • 長鎖アルキル基を有するジアリールエテン結晶の光誘起結晶形状変化 Domestic conference

    東口 拓矢, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • ジアリールエテンの光スタート型温度上昇センサー機能への極性置換基の影響 Domestic conference

    神野 武史, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • ジアリールエテンとフルオレン誘導体を内包したポリマー粒子の蛍光スイッチング特性 Domestic conference

    桐山 貴至, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • 置換基導入によるジアリールエテンの熱開環反応の制御 Domestic conference

    佐藤 雄太, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • 酸存在下におけるジアリールエテン誘導体の熱退色反応解析 Domestic conference

    櫻井 桃香, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • 2つのS,S-ジオキシドベンゾチオフェン基を有するジアリールエテンの高効率フォトクロミック反応 Domestic conference

    高橋 直子, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • ジアリールベンゼン誘導体のT型フォトクロミズム Domestic conference

    塚原 直也, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • ヘキサン中におけるスピロピランの紫外光照射による微結晶の生成 Domestic conference

    水口 貴文, 北川 大地, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • 瀬戸 佑弥, 山田 理絵, 北川 大地, 小畠 誠也 Domestic conference

    ジアリールエテンを用いた量子ドットの発光スイッチング

    第61回放射線化学討論会  2018.09 

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  • ジヘテロアリールベンゼン誘導体のフォトクロミズムと高速熱退色反応挙動 Domestic conference

    中濱 龍源, 北川 大地, 中井 喜裕, 小畠 誠也

    第61回放射線化学討論会  2018.09 

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  • Crystallization-induced emission of diarylethene induced by mechanical scratching and heating Domestic conference

    Tatsumoto Nakahama, Daichi Kitagawa, Hikaru Sotome, Syoji Ito, Hiroshi Miyasaka, Seiya Kobatake

    2018年光化学討論会  2018.09 

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  • Fabrication and Fluorescence Switching of Polymer Particles Encapsulated Diarylethene and Fluorene Derivatives Domestic conference

    Takashi Kiriyama, Daichi Kitagawa, Seiya Kobatake

    2018年光化学討論会  2018.09 

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  • 酸存在下におけるジアリールエテン閉環体の熱退色反応解析 Domestic conference

    櫻井 桃香, 北川 大地, 小畠 誠也

    2018年光化学討論会  2018.09 

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  • ジアリールエテン結晶の偏光紫外光照射による光誘起屈曲挙動 Domestic conference

    平野 明, 北川大地, 小畠誠也

    2018年光化学討論会  2018.09 

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  • Substituent Effect on Photochromic Reactivities of Diarylethenes Bearing Two S,S-Dioxidized Benzothiophene Groups Domestic conference

    Naoko Takahashi, Daichi Kitagawa, Seiya Kobatake

    2018年光化学討論会  2018.09 

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  • Dependence of Photoinduced Birefringence Change of Diarylethene Crystals on Their Molecular Structures Domestic conference

    Kohei Morimoto, Daichi Kitagawa, Seiya Kobatake

    2018年光化学討論会  2018.09 

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  • Importance of Photo-irradiation Conditions on Photomechanical Behavior of Photoresponsive Molecular Crystals Domestic conference

    Daichi Kitagawa, Seiya Kobatake

    2018年光化学討論会  2018.09 

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  • How Illumination Direction Affects Photomechanical Crystal Twisting International conference

    Daichi Kitagawa, Hajime Tsujioka, Fei Tong, Xinning Dong, Chrostopher J. Bardeen, and Seiya Kobatake

    13th International Workshop on Crystal Growth of Organic Materials (CGOM13)   2018.08 

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  • Crystallization-induced Emission of 1,2-Bis(3-methyl-5-(4-alkylphenyl)-2-thienyl)perfluorocyclorpentenes International conference

    Tatsumoto Nakahama, Daichi Kitagawa, Hikaru Sotome, Syoji Ito, Hiroshi Miyasaka, and Seiya Kobatake

    13th International Workshop on Crystal Growth of Organic Materials (CGOM13)   2018.08 

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  • Photo-tuning of Birefringence in Diarylethene Crystals International conference

    Kohei Morimoto, Hajime Tsujioka, Daichi Kitagawa, and Seiya Kobatake

    13th International Workshop on Crystal Growth of Organic Materials (CGOM13)   2018.08 

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  • ジアリールエテンとフルオレン誘導体を内包したポりマー粒子の蛍光スイッチング Domestic conference

    桐山貴至, 北川大地, 小畠誠也

    第64回高分子研究発表会(神戸)  2018.07 

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  • フォトメカニカル結晶に関する最新の研究成果と展望 Domestic conference

    北川大地, 小畠誠也

    第39回光化学若手の会  2018.06 

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  • 光スタート型温度上昇センサー機能への極性置換基の影響 Domestic conference

    神野武史, 北川大地, 小畠誠也

    第39回光化学若手の会  2018.06 

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  • BODIPYポリマーの固体発光色スイッチング Domestic conference

    清水克哉, 北川大地, 小畠誠也

    第39回光化学若手の会  2018.06 

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  • 様々なアルキル基を有するジアリールエテンの結晶化誘起発光 Domestic conference

    中濱龍源, 北川大地, 小畠誠也, 五月女 光, 伊都将司, 宮坂 博

    第39回光化学若手の会  2018.06 

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  • 酸存在下におけるジアリールエテン誘導体の熱退色反応の溶媒効果 Domestic conference

    櫻井 桃香・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • ポリマー鎖内におけるBODIPYの組成比変化に伴う固体発光色変化 Domestic conference

    清水 克哉・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • ジアリールエテンナノ粒子の開環反応に対するレーザー過渡加熱効果 Domestic conference

    石橋 千英・増田 圭佑・北川 大地・小畠 誠也・朝日 剛

    日本化学会第98春季年会  2018.03 

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  • ジアリールエテン単結晶の光誘起複屈折変化と分子構造の関係 Domestic conference

    森本 晃平・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • 電子求引性置換基を有するチオフェン酸化型ジアリールエテンの合成と特性評価 Domestic conference

    神野 武史・田中 智・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • 2つのS,S-ジオキシドベンゾチオフェン基を有するジアリールエテンの合成と光学特性評価 Domestic conference

    高橋 直子・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • 電子求引性置換基導入によるジアリールエテンの熱開環反応性 Domestic conference

    佐藤 雄太・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • 1,2-ジヘテロアリールベンゼン誘導体の合成とフォトクロミック反応挙動 Domestic conference

    塚原 直也・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • 蛍光性ジアリールエテン結晶の蛍光スイッチング特性 Domestic conference

    石田 沙奈恵・北川 大地・小畠 誠也・金 善南・緒方 智成・栗原 清二・深港 豪

    日本化学会第98春季年会  2018.03 

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  • 光応答性ジアリールエテン被覆量子ドットの合成と発光スイッチング Domestic conference

    山田 理絵・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • ジアリールエテンの結晶化誘起発光増強におけるアルキル鎖長依存性 Domestic conference

    中濱 龍源・北川 大地・五月女 光・伊都 将司・宮坂 博・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • Control of photomechanical crystal twisting depending on illumination direction Domestic conference

    Daichi Kitagawa, Hajime Tsujioka, Seiya Kobatake

    日本化学会第98春季年会  2018.03 

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  • Dependence of photoinduced bending behavior of diarylethene single crystal on direction of polarized ultraviolet light Domestic conference

    Akira Hirano, Daichi Kitagawa, Seiya Kobatake

    日本化学会第98春季年会  2018.03 

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  • オクチル基を有するジアリールエテン単結晶の相転移と光誘起形状変化 Domestic conference

    川﨑 魁人・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • 低温条件下でフォトクロミズムを示すジアリールエテンの合成と熱退色反応性 Domestic conference

    中井 喜裕・北川 大地・小畠 誠也

    日本化学会第98春季年会  2018.03 

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  • 酸添加によるジアリールエテン誘導体の熱退色反応挙動 Domestic conference

    櫻井桃香, 前道啓之, 北川大地, 小畠誠也

    バイオインターフェイス先端マテリアルの創生 第8回シンポジウム  2018.02 

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  • ジアリールエテン単結晶の光誘起屈曲挙動における光照射条件の影響: 照射紫外光の偏光方向依存性 Domestic conference

    平野 明, 北川大地, 小畠誠也

    バイオインターフェイス先端マテリアルの創生 第8回シンポジウム  2018.02 

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  • ジアリールエテン単結晶の閉環反応に伴う複屈折変化 Domestic conference

    森本晃平, 北川大地, 小畠誠也

    バイオインターフェイス先端マテリアルの創生 第8回シンポジウム  2018.02 

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  • ジアリールエテン単結晶による光誘起複屈折変化 Domestic conference

    森本晃平, 辻岡 創, 北川大地, 小畠誠也

    新学術領域「高次複合光応答」第6回公開シンポジウム  2018.01 

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  • 熱および力学的刺激に応答する結晶化に基づく蛍光パターニング Domestic conference

    中濱龍源, 北川大地, 小畠誠也, 五月女 光, 伊都将司, 宮坂 博

    新学術領域「高次複合光応答」第6回公開シンポジウム  2018.01 

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  • 末端にアルキル鎖を有するジアリールエテンの結晶化誘起発光増強 Domestic conference

    中濱龍源, 北川大地, 五月女 光, 伊都将司, 宮坂 博, 小畠誠也

    2017年度新学術4領域合同シンポジウム  2017.12 

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  • ジアリールエテン単結晶の熱的相転移を伴うフォトメカニカル挙動 Domestic conference

    川崎魁人, 北川大地, 小畠誠也

    2017年度新学術4領域合同シンポジウム  2017.12 

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  • フォトクロミック反応に伴う量子ドットの非線形発光スイッチング Domestic conference

    山田理絵, 北川大地, 小畠誠也

    第26回ポリマー材料フォーラム  2017.11 

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  • ジアリールエテンナノ粒子の非線形蛍光スイッチング Domestic conference

    中濱龍源, 北川大地, 五月女 光, 伊都将司, 宮坂 博, 小畠誠也

    第26回ポリマー材料フォーラム  2017.11 

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  • 光応答性ポリマーを被覆したシリカナノ粒子の合成と蛍光スイッチング Domestic conference

    清水克哉, 北川大地, 小畠誠也

    第26回ポリマー材料フォーラム  2017.11 

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  • ジアリールエテン結晶の熱的相転移を伴う光誘起形状変形 Domestic conference

    小畠誠也, 川崎魁人, 北川大地

    第26回有機結晶シンポジウム  2017.11 

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  • ジアリールエテン単結晶の光誘起複屈折変化 Domestic conference

    森本晃平, 辻岡 創, 北川大地, 小畠誠也

    第26回有機結晶シンポジウム  2017.11 

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  • ジアリールエテン単結晶の光誘起屈曲挙動における照射強度および偏光方向依存性 Domestic conference

    平野 明, 北川大地, 小畠誠也

    第26回有機結晶シンポジウム  2017.11 

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  • 硫黄酸化型ジアリールエテンの置換基導入による光反応量子収率の制御 Domestic conference

    中井喜裕, 北川大地, 小畠誠也

    第7回CSJ化学フェスタ2017  2017.10 

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  • ジアリールエテンを用いた量子ドットの非線形発光ON/OFF スイッチング特性 Domestic conference

    山田理絵, 北川大地, 小畠誠也

    第7回CSJ化学フェスタ2017  2017.10 

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  • 酸添加に伴うジアリールエテン誘導体の熱退色反応挙動 Domestic conference

    櫻井桃香, 前道啓之, 北川大地, 小畠誠也

    第7回CSJ化学フェスタ2017  2017.10 

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  • ジアリールエテン単結晶の光誘起屈曲挙動に及ぼす照射紫外光強度および偏光方向依存性 Domestic conference

    平野 明, 北川大地, 小畠誠也

    第7回CSJ化学フェスタ2017  2017.10 

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  • Fluorescence switching of silica nanoparticle covered with diarylethene polymers International conference

    Katsuya Shimizu, Daichi Kitagawa, Seiya Kobatake

    IUPAC-FAPS 2017 Polymer Congress: Smart Polymers of Emerging Technology  2017.10 

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  • ジアリールエテン結晶およびナノ粒子のマルチカラー蛍光特性 Domestic conference

    中濱龍源, 北川大地, 五月女 光, 伊都将司, 宮坂 博, 小畠誠也

    第3回「高次複合光応答」若手の会  2017.09 

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  • ジアリールエテン単結晶の光誘起複屈折変化 Domestic conference

    森本晃平, 辻岡 創, 北川大地, 小畠誠也

    第3回「高次複合光応答」若手の会  2017.09 

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  • ジアリールエテン単結晶の光誘起屈曲挙動の照射強度および偏光方向依存性 Domestic conference

    平野 明, 北川大地, 小畠誠也

    第3回「高次複合光応答」若手の会  2017.09 

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  • オクチル基を有するジアリールエテンの光および熱による結晶形状変化 Domestic conference

    川崎魁人, 北川大地, 小畠誠也

    2017年光化学討論会   2017.09 

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  • 光応答性ジアリールエテン被覆量子ドットの非線形発光スイッチング Domestic conference

    山田理絵, 北川大地, 小畠誠也

    2017年光化学討論会  2017.09 

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  • 酸添加に伴うジアリールエテン誘導体の熱退色反応挙動 Domestic conference

    櫻井桃香, 前道啓之, 北川大地, 小畠誠也

    2017年光化学討論会  2017.09 

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  • ジアリールエテン単結晶の光誘起屈曲挙動における照射紫外光強度の影響 Domestic conference

    平野 明, 北川大地, 小畠誠也

    2017年光化学討論会  2017.09 

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  • ジアリールエテン結晶の光開環反応に伴う蛍光挙動 Domestic conference

    中濱龍源, 北川大地, 五月女 光, 伊都将司, 宮坂 博, 小畠誠也

    2017年光化学討論会  2017.09 

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  • Control of photocyclization quantum yield by substituent at the reactive positon for thiophene-S,S-dioxidized diarylethenes having benzofuran ring at the ethene moiety Domestic conference

    Yoshihiro Nakai, Daichi Kitagawa, Seiya Kobatake

    2017年光化学討論会  2017.09 

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  • Non-linear fluorescence switching using FRET between polymer chains covering silica nanoparticle Domestic conference

    Katsuya Shimizu, Daichi Kitagawa, Seiya Kobatake

    2017年光化学討論会  2017.09 

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  • ジアリールエテン単結晶の光誘起屈曲挙動の照射強度および偏光方向依存性 Domestic conference

    平野 明, 北川大地, 小畠誠也

    第7回フッ素化学若手の会  2017.08 

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  • フォトクロミックシリカナノ粒子の合成と蛍光ON/OFFスイッチング Domestic conference

    清水克哉, 北川大地, 小畠誠也

    第7回フッ素化学若手の会  2017.08 

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  • Emission Color Tuning and Efficient Emission of BODIPY Polymer in Solid State International conference

    Katsuya Shimizu, Daichi Kitagawa, Seiya Kobatake

    27th International Symposium on Photochemistry (PhotoIUPAC 2018)   2017.07 

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  • フォトクロミックジアリールエテン単結晶のフォトメカニカル挙動 Invited Domestic conference

    北川大地, 小畠誠也

    「ソフトロボット:メカニカル材料」シンポジウム  2017.05 

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    Presentation type:Oral presentation (general)  

  • ジアリールエテンと蛍光分子を被覆したシリカナノ粒子の非線形蛍光スイッチング挙動 Domestic conference

    清水克哉, 北川大地, 小畠誠也

    新学術領域「高次複合光応答」第6回若手セミナー  2017.05 

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    Presentation type:Oral presentation (general)  

  • ジアリールエテン結晶の光開環反応に伴う結晶砕破と蛍光挙動 Domestic conference

    中濱龍源, 北川大地, 小畠誠也, 五月女 光, 伊都将司, 宮坂 博

    新学術領域「高次複合光応答」第2回領域会議  2017.05 

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    Presentation type:Poster presentation  

  • ジアリールエテンと蛍光分子を被覆したシリカナノ粒子の非線形蛍光スイッチング挙動 Domestic conference

    清水克哉, 北川大地, 小畠誠也

    新学術領域「高次複合光応答」第2回領域会議  2017.05 

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    Presentation type:Poster presentation  

  • ジアリールエテン被覆量子ドットの非線形発光スイッチング Domestic conference

    北川大地, 山田理絵, 小畠誠也

    新学術領域「高次複合光応答」第2回領域会議  2017.05 

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    Presentation type:Poster presentation  

  • フォトメカニカル結晶を用いた光駆動デバイスの創製 Domestic conference

    北川大地

    ニューテクフェア2016  2016.12 

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    Presentation type:Oral presentation (general)  

  • 蛍光色調変化によるジアリールエテン結晶の結晶多形相転移過程の直接観察 Domestic conference

    北川大地, 中濱龍源, 武藤克也, 小林洋一, 阿部二朗, 五月女光, 伊都将司, 宮坂 博, 小畠誠也

    第35回 固体・表面光化学討論会  2016.11 

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    Presentation type:Oral presentation (general)  

  • Photoinduced Rapid and Explosive Fragmentation of Diarylethene Crystals Having Urethane Bonding International conference

    Daichi Kitagawa, Tomohiro Okuyama, Rika Tanaka, Seiya Kobatake

    8th International Symposium on Photochromism (ISOP 2016)  2016.11 

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    Presentation type:Poster presentation  

  • ジアリールエテン結晶の結晶多形間相転移に基づく蛍光色調変化 Domestic conference

    北川大地, 中濱龍源, 武藤克也, 小林洋一, 阿部二朗, 五月女光, 伊都将司, 宮坂 博, 小畠誠也 

    第25回有機結晶シンポジウム  2016.11 

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    Presentation type:Oral presentation (general)  

  • ジアリールエテン結晶の蛍光色調変化を伴う結晶多形相転移 Domestic conference

    北川大地, 中濱龍源, 武藤克也, 小林洋一, 阿部二朗, 五月女 光, 伊都将司, 宮坂 博, 小畠誠也

    2016年光化学討論会  2016.09 

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    Presentation type:Oral presentation (general)  

  • 熱機能性を有するフォトクロミックジアリールエテンの分子設計戦略 Domestic conference

    北川大地, 小畠誠也

    第37回光化学若手の会  2016.06 

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    Presentation type:Oral presentation (invited, special)  

  • Light-Driven Actuators of Photochromic Diarylethene Crystals International conference

    Daichi Kitagawa, Seiya Kobatake

    XXVIth IUPAC Symposium on Photochemistry  2016.04 

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    Presentation type:Oral presentation (general)  

  • Polymorphic Phase Transition and Fluorescence Color Change of Diarylethene Crystals Domestic conference

    Daichi Kitagawa, Katsuya Mutoh, Youichi Kobayashi, Jiro Abe, Seiya Kobatake

    日本化学会第96春季年会  2016.03 

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    Presentation type:Poster presentation  

  • UV light irradiation Wavelength Dependence on the Photoinduced Bending Behavior of Photochromic Diarylethene Crystals International conference

    Daichi Kitagawa, Seiya Kobatake

    Pacifichem 2015  2015.12 

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    Presentation type:Poster presentation  

  • Photoinduced Bending Behavior of Gold-Coated Diarylethene Crystals International conference

    Daichi Kitagawa and Seiya Kobatake

    World Engineering Conference and Convention 2015 (WECC2015)  2015.11 

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    Presentation type:Poster presentation  

  • Control of Bending Behavior of Diarylethene Crystals upon UV Irradiation with Different Wavelength Domestic conference

    Daichi Kitagawa, Seiya Kobatake

    2015年光化学討論会  2015.09 

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    Presentation type:Poster presentation  

  • 有機結晶を用いた微小フォトアクチュエータの開発 Domestic conference

    北川大地, 小畠誠也

    第1回先端マテリアル研究会   2015.09 

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    Presentation type:Oral presentation (general)  

  • Photoreversible Current ON/OFF Switching by Photoinduced Bending of Gold-Coated Diarylethene Crystals Invited International conference

    Daichi Kitagawa, Seiya Kobatake

    22nd International Conference on the Chemistry of the Organic Solid State (ICCOSS 2015)   2015.07 

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    Presentation type:Oral presentation (invited, special)  

  • ジアリールエテン結晶の光誘起屈曲挙動における紫外光照射波長依存性 Domestic conference

    北川大地、小畠誠也

    日本化学会第95春季年会  2015.03 

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    Presentation type:Oral presentation (general)  

  • 金蒸着したジアリールエテン結晶の光誘起屈曲現象 Domestic conference

    北川大地, 小畠誠也

    2014年光化学討論会  2014.10 

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    Presentation type:Poster presentation  

  • Photoinduced Bending Behavior of Diarylethene Crystals International conference

    Daichi Kitagawa, Seiya Kobatake

    XXVth IUPAC Symposium on Photochemistry  2014.07 

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    Presentation type:Poster presentation  

  • Polymorphism and Phase Transition between Polymorphic Forms of Photochromic Diarylethene Crystals International conference

    Daichi Kitagawa, Seiya Kobatake

    Joint Congress of Asian Crystallization Technology Symposium-2014 (ACTS-2014) and 11th International Workshop on Crystal Growth of Organic Materials (CGOM11)  2014.06 

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    Presentation type:Poster presentation  

  • ジアリールエテン誘導体結晶の光照射による特異な屈曲挙動 Domestic conference

    北川 大地、小畠 誠也

    日本化学会第94春季年会   2014.03 

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    Presentation type:Oral presentation (general)  

  • ジアリールエテン結晶の光誘起屈曲現象における結晶の厚み依存性 Domestic conference

    北川 大地, 小畠 誠也

    2013年光化学討論会  2013.09 

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    Presentation type:Poster presentation  

  • Crystal thickness dependence of photoinduced crystal bending of a photochromic Diarylethene derivative International conference

    Daichi Kitagawa, Seiya Kobatake

    7th International Symposium on Photochromism (ISOP 2013)  2013.09 

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    Presentation type:Poster presentation  

  • Photoinduced crystal shape change of diarylethene derivatives having naphthyl groups International conference

    Daichi Kitagawa, Seiya Kobatake

    26th International Conference on Photochemistry (ICP 2013)  2013.07 

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    Presentation type:Poster presentation  

  • ジアリールエテン結晶の光誘起ねじれ現象 Domestic conference

    北川 大地, 小畠 誠也

    日本化学会第93春季年会  2013.03 

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    Presentation type:Oral presentation (general)  

  • 反応部位にプロピル基を有するジアリールエテンの結晶多形間での結晶‐結晶相転移 Domestic conference

    北川 大地, 小畠 誠也

    2012年光化学討論会  2012.09 

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    Presentation type:Poster presentation  

  • 反応部位にプロピル基を有するジアリールエテンの結晶多形とフォトクロミズム Domestic conference

    北川大地, 小畠誠也

    日本化学会第92春季年会  2012.03 

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    Presentation type:Oral presentation (general)  

  • 光応答性分子結晶を用いた超撥水性表面の作製とフォトマイクロパターニング Domestic conference

    北川 大地, 小畠 誠也

    大阪市立大学重点研究「バイオインターフェース先端マテリアルの創生」第2回シンポジウム  2012.02 

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    Presentation type:Poster presentation  

  • フォトクロミックジアリールエテンの光誘起結晶融解と結晶成長 Domestic conference

    北川大地, 小畠誠也

    2011年光化学討論会  2011.09 

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    Presentation type:Poster presentation  

  • フォトクロミックジアリールエテンの結晶成長制御と固体表面物性 Domestic conference

    北川大地, 小畠誠也

    2011年光化学討論会  2011.09 

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    Presentation type:Poster presentation  

  • 光応答性温度センサーの開発 Domestic conference

    北川大地, 小路弘晃, 小畠誠也

    大阪市立大学重点研究「バイオインターフェース先端マテリアルの創生」第1回シンポジウム  2011.02 

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    Presentation type:Poster presentation  

  • Photoinduced micropatterning by polymorphic crystallization of a photochromic diarylethene in a polymer film International conference

    Daichi Kitagawa, Seiya Kobatake

    The International Chemical Congress of Pacific Basin Societies (Pacifichem2010)  2010.12 

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    Presentation type:Poster presentation  

  • 結晶多形フォトクロミックジアリールエテンの結晶成長に基づく表面濡れ性制御 Domestic conference

    北川大地, 小畠誠也

    第6回日本接着学会関西支部若手研究者の会  2010.11 

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    Presentation type:Poster presentation  

  • 結晶多形フォトクロミックジアリールエテンを用いた表面濡れ性制御 Domestic conference

    北川大地, 小畠誠也

    第19回有機結晶シンポジウム  2010.11 

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    Presentation type:Poster presentation  

  • Control of surface wettability and photo-micropatterning with a polymorphic diarylethene upon photoirradiation International conference

    Daichi Kitagawa, Seiya Kobatake

    The 6th International Symposium on Organic Photochromism (ISOP2010)  2010.10 

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    Presentation type:Poster presentation  

  • 光によるジアリールエテンの結晶成長制御に基づく表面濡れ性制御とフォトマイクロパターニング Domestic conference

    北川大地, 小畠誠也

    2010年光化学討論会  2010.09 

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    Presentation type:Oral presentation (general)  

  • フォトクロミックジアリールエテンの熱開環反応に及ぼす置換基の立体効果 Domestic conference

    北川大地, 小畠誠也

    分子科学討論会2010  2010.09 

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    Presentation type:Poster presentation  

  • ポリメタクリル酸メチル中でのジアリールエテンの結晶成長を利用した表面濡れ性制御 Domestic conference

    北川大地, 小畠誠也

    第56回高分子研究発表会 (神戸)  2010.07 

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    Presentation type:Poster presentation  

  • 光照射によるジアリールエテンの結晶成長制御とマイクロパターニング Domestic conference

    北川大地, 小畠誠也

    日本化学会第90春季年会  2010.03 

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    Presentation type:Oral presentation (general)  

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Grant-in-Aid for Scientific Research

  • 光反応速度論と結晶形状変化の相関解析によるフォトメカニカル機能発現機構の解明

    Grant-in-Aid for Scientific Research(B)  2023

  • アップコンバージョンナノ光源を用いた有機固体中励起エネルギー移動の超解像計測

    Fund for the Promotion of Joint International Research / Fostering Joint International Research (B)  2022

  • 光反応性分子結晶のフォトメカニカル機能発現機構の動的解明

    Grant-in-Aid for Early-Career Scientists  2021.04

  • Creation of functional materials exhibiting nonlinear response based on crystal photochromism and phase transition

    Grant-in-Aid for Young Scientists(B)  2016.04

  • 光応答性有機結晶の結晶成長制御による新規機能性材料の創生

    Grant-in-Aid for JSPS Fellows  2012.04

Incentive donations / subsidies

  • 光エネルギーで駆動するフォトメカニカル結晶材料の高機能化

    公益財団法人 東燃ゼネラル石油研究奨励・奨学財団  2020.04

  • 光応答性有機結晶を用いた光エネルギーの力学的エネルギーへの直接変換

    未設定  2017.04

  • 光スイッチング機能を有する強発光性有機結晶の創生

    未設定  2016.07

Other subsidies, etc.

  • 結晶高速フォトクロミズムの学術基盤構築

    大学  2021.04

  • 6π電子系高速フォトクロミック分子システムの構築とその応用

    大学  2020.04

  • フォトメカニカル機能の高性能化を志向した6π電子系高速フォトクロミック分子システムの構築

    大学  2019.04

Charge of on-campus class subject

  • 卒業研究Ⅰ

    2023   Intensive lecture   Undergraduate

  • 化学バイオ工学特論Ⅰ

    2023   Intensive lecture   Undergraduate

  • 化学バイオ工学概論

    2023   Intensive lecture   Undergraduate

  • 応用化学実験Ⅰ

    2023   Weekly class   Undergraduate

  • 初年次ゼミナール

    2023   Weekly class   Graduate school

  • 物質化学生命系特別研究第1

    2023   Intensive lecture   Graduate school

  • 物質化学生命系特別演習第1

    2023   Intensive lecture   Graduate school

  • 化学バイオ工学演習

    2023   Weekly class   Undergraduate

  • 有機化学1B

    2023   Weekly class   Undergraduate

  • 卒業研究Ⅱ

    2023   Intensive lecture   Undergraduate

  • 情報化学演習

    2023   Weekly class   Undergraduate

  • 化学バイオ工学特論Ⅱ

    2023   Intensive lecture   Undergraduate

  • 化学英語演習

    2023   Weekly class   Undergraduate

  • 物質化学生命系特別研究第2

    2023   Intensive lecture   Graduate school

  • 物質化学生命系特別演習第2

    2023   Intensive lecture   Graduate school

  • English Exercises in Chemistry

    2022     Undergraduate

  • 応用化学実験I

    2022     Undergraduate

  • Organic Chemistry III

    2022     Undergraduate

  • 有機工業化学

    2022     Undergraduate

  • 情報化学演習

    2022   Weekly class   Undergraduate

  • 物質化学生命系特別演習第1

    2022   Intensive lecture   Graduate school

  • 物質化学生命系特別演習第2 (化学バイオ工学分野)

    2022   Intensive lecture   Graduate school

  • 卒業研究Ⅰ

    2022   Intensive lecture   Undergraduate

  • 有機工業化学

    2022   Weekly class   Undergraduate

  • 有機化学Ⅲ

    2022   Weekly class   Undergraduate

  • 化学バイオ工学特論Ⅰ

    2022   Intensive lecture   Undergraduate

  • 化学バイオ工学概論

    2022   Intensive lecture   Undergraduate

  • 応用化学実験Ⅰ

    2022   Weekly class   Undergraduate

  • 卒業研究

    2022   Intensive lecture   Undergraduate

  • 情報化学演習

    2022   Weekly class   Undergraduate

  • 化学バイオ工学特論

    2022   Intensive lecture   Undergraduate

  • 化学英語演習

    2022   Weekly class   Undergraduate

  • 化学バイオ工学演習A

    2021     Undergraduate

  • English Exercises in Chemistry

    2021     Undergraduate

  • 応用化学実験I

    2021     Undergraduate

  • Organic Chemistry III

    2021     Undergraduate

  • 化学バイオ工学演習A

    2020     Undergraduate

  • Organic Chemistry III

    2020     Undergraduate

  • 応用化学実験I

    2020     Undergraduate

  • English Exercises in Chemistry

    2020     Undergraduate

  • 応用化学実験I

    2019     Undergraduate

  • English Exercises in Chemistry

    2019     Undergraduate

  • 化学バイオ工学演習A

    2019     Undergraduate

  • 応用化学実験I

    2018     Undergraduate

  • 化学バイオ工学演習A

    2018     Undergraduate

  • 応用化学実験I

    2017     Undergraduate

  • 化学バイオ工学演習A

    2017     Undergraduate

  • 応用化学実験I

    2016     Undergraduate

  • 化学バイオ工学演習Ⅱ

    2016     Undergraduate

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Number of papers published by graduate students

  • 2023

    Number of undergraduate student / college student presentations:Number of graduate students presentations:5

Number of instructed thesis, researches

  • 2023

    Number of instructed the graduation thesis:Number of graduation thesis reviews:4

    [Number of instructed the Master's Program] (previous term):10  [Number of instructed the Master's Program] (letter term):2

    [Number of master's thesis reviews] (chief):[Number of master's thesis reviews] (vice-chief):2

    [Number of doctoral thesis reviews] (chief):[Number of doctoral thesis reviews] (vice-chief):0

  • 2022

    Number of instructed the graduation thesis:Number of graduation thesis reviews:3

    [Number of instructed the Master's Program] (previous term):[Number of instructed the Master's Program] (letter term):3

    [Number of master's thesis reviews] (chief):[Number of master's thesis reviews] (vice-chief):2

    [Number of doctoral thesis reviews] (chief):[Number of doctoral thesis reviews] (vice-chief):0

Academic Activities

  • 論文査読

    Role(s): Peer review

    2023.04 - 2024.03

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    Type:Peer review 

    論文査読件数:13件

International exchange activities

  • カリフォルニア大学リバーサイド校とのフォトメカニカル結晶に関する国際共同研究

    Field category :Research

    Country name :United States of America   2017.06 - Now

Other

  • Job Career

    2019.04 - Now

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    Osaka City University Lecturer

  • Job Career

    2017.04 - 2019.03

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    Osaka City University Assistant Professor

  • Job Career

    2015.04 - 2017.03

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    Osaka City University Specially Appointed Assistant Professor