Ultrafast Dynamics and Mechanisms of Photochromic Reactions

2010 Fiscal Year Final Research Report

• Project Area: New Horizons of Photochromism: Customized Molecular Design and Novel Applications
• Project/Area Number: 19050006
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Osaka University
• Principal Investigator: MIYASAKA Hiroshi Osaka University, 大学院・基礎工学研究科, 教授 (40182000)
• Project Period (FY): 2007 – 2010
• Keywords: フェムト秒分光 / ピコ秒分光 / 多光子過程 / フォトクロミズム / 光化学反応

Research Abstract

In order to elucidate the dynamics and mechanisms of photochromic reactions of organic molecular systems, a detection system with ultrafast time resolution <20 fs was constructed. Cyclization and cycloreversion dynamics and their relation to intramolecular low-frequency vibrations were elucidated. In addition, it was revealed that the stepwise two-photon absorption can open the effective cycloreversion channel (>2500 times compared to the one-photon process) in specific higher excited states un-accessible via one-photon absorption from the ground state. By using a near IR femtosecond laser pulse at 1.28μm with an optical microscope, one-color reversible control of the cyclization (simultaneous 3-photon absorption) and the cycloreversion (simultaneous 2-photon absorption) was attained.

Research Products

• [Journal Article] Single-molecule fluorescence photoswitching of a diarylethene-perylenebisimide ddestructive fluorescence readout (2011)
  • Author(s): T.Fukaminato, T.Doi, N.Tamaoki, K.Okuno,Ishibashi, H.Miyasaka, M.Irie
  • Journal Title: J.Am.Chem.Soc. 133[13] Pages: 4984-4990
• [Journal Article] One-color reversible control of photochrreactions in a diarylethene derivative : three-photon cyclization and two-photon cycloreversion by near ir femtosecond laser pulse at 1.28μm (2011)
  • Author(s): K.Mori, Y.Ishibashi, H.Matsuda, S.Ito, Y.Nagasawa, H.Nakagawa, K.Uchida, S.YokoIrie, H.Miyasaka
  • Journal Title: J.Am.Chem.Soc. 133[8] Pages: 2621-2625
• [Journal Article] Cyclization reaction dynamics of a photochromic diarylethene derivative as revealed by femtosecond to microsecond time-resolved spectroscopy (2011)
  • Author(s): Y.Ishibashi, M.Fujiwara, T.Umesato, H.Saito, S.KobataM.Irie, H.Miyasaka
  • Journal Title: J.Phys.Chem.C 115[10] Pages: 4265-4272
• [Journal Article] Multiphoton-gated cycloreversion reactions of photochromic diarylethene derivatives with low reaction yield upon one-photon visible excitation. (2010)
  • Author(s): Y.Ishibashi, K.Okuno, C.Ota,Umesato, T.Katayama, M.Murakami, S.Kobatake, M.Irie, H.Miyasaka
  • Journal Title: Photoc Photobiol.Sci. 9[2] Pages: 172-180
• [Journal Article] Fluorescence photoswitching of a diarylethene- perylenebisimide dyad on intramolecular electron transfer (2010)
  • Author(s): T.Fukaminato, M.Tanaka, T.Doi, N.TamT.Katayama, A.Mallick, Y.Ishibashi, H.Miyasaka, M.Iri
  • Journal Title: Photobiol.Sci. 9[2] Pages: 181-187
• [Journal Article] Photochromic nucleobase photoisomerivisible light (2010)
  • Author(s): S.Ogasawara, S.Ito, H.Miyasaka, Mizu Maeda
  • Journal Title: Chem.Lett. 39[9] Pages: 956-995
• [Journal Article] Ultrafast photodissociation dynamics of a hexaarylbiimidazole derivative with pyrenyl groups : dispersive reaction from femtosecond to 10 ns time regions (2009)
  • Author(s): H.Miyasaka, YY.Ishibashi, S.Ito, Y.Nagasawa, S.Taniguchi, H.Chosrowjan, N.Mataga, D.Kato, A.Kikuchi
  • Journal Title: J.Abe,J.Am 131[21] Pages: 7256-7263
• [Journal Article] One-and multi-photon cycloreversion reaction dynamics of diarylethene derivativewith asymmetrical structure, as revealed by ultrafast laser spectroscopy (2009)
  • Author(s): Y.Ishibashia, MMukaida, M.Falkenstrom, H.Miyasaka, S.Kobatake, M.Irie
  • Journal Title: Phys.Che 11[15] Pages: 2640-2648
• [Journal Article] Photoisomerization of azobenzene gel bypulsed laser irradiation. (2009)
  • Author(s): K.Uchida, S.Yamaguchi, H.Yamada, M.Akazawa, T.Katayama, Y.Ishibashi, H.Miyasaka
  • Journal Title: Chem.Com. [29] Pages: 4420-4422
• [Journal Article] Ultrafast laser spectroscopic study on photochromic cycloreversion dynamfulgide derivatives : one-photon and multiphoton-gated reactions. (2009)
  • Author(s): Y.Ishibashi, T.Katayamal, C.Ota, S.Kobatake, M.Irie, YYokoyama, H.Miyasaka, New J.Chem
  • Journal Title: New J.Chem. 33[6] Pages: 1409-1419
• [Journal Article] Dynamics of cyclization, cycloreversion and multiphoton gated reaction of a photochromic diarylethene derivative in crystalline phase. (2008)
  • Author(s): K.Tani, Y.Ishibashi, H.Miyasaka, S.Kobatake, M.Irie
  • Journal Title: J.Phys. [30] Pages: 11150-11157
• [Journal Article] Laser multiphoton-gated photochromic reaction of a fulgide derivative. (2007)
  • Author(s): Y.Ishibashi, M.Murakami, H.Miyasaka, S.Kobatake, M.Irie, Y.Yokoyama
  • Journal Title: J.Phys.Chem.C 111[6] Pages: 2730-2737
• [Journal Article] Picosecond laser photolysis study of a photochromic diarylethene derivative in crystalline phase : multiphoton-gated reaction. (2007)
  • Author(s): Y.Ishibashi, K.Tani, H.Miyasaka, S.Kobatake, M.Irie
  • Journal Title: Chem.Phys.Lett. 437[3,4] Pages: 243-247
• [Journal Article] Laser photolysis study on photochromic reactions of a hexaarylbiimidazole derivative. (2007)
  • Author(s): Y.Satoh, Y.Ishibashi, S.Ito, Y.Nagasawa, HMiyasaka, H.Chosrowjan, S.Taniguchi, N.Mataga, D.Kato, A.Kikuchi, J.Abe
  • Journal Title: Chem.Phys.Lett. 448[4-6] Pages: 228-231
• [Journal Article] Multiphoton gated photochromic reaction of diarylethene derivatives in PMMA solid film. (2007)
  • Author(s): S.I.Ryo, Y.Ishibashi, M.Murakami, H.Miyasaka, S.Kobatake, M.Irie
  • Journal Title: J.Phys.Org.Chem. 20[11] Pages: 953-959
• [Presentation] Multiphoton gated photochromic reaction indiarylethene and fulgide derivatives (2009)
  • Author(s): H.Miyasaka
  • Organizer: Plenary Lecture in "24th International Conference on Photoche mistry"
  • Place of Presentation: Toledo, Spain
  • Year and Date: 20090700
• [Presentation] Ultrafast dynamics of photochromic reactions in diarylethene and fulgide derivatives (2009)
  • Author(s): H.Miyasaka
  • Organizer: Invited Lectu" JSPS Asian and Oceanian Science Seminar"
  • Place of Presentation: Kawasaki
  • Year and Date: 20090302-20090305
• [Presentation] 超高速時間分解計測によるフォトクロミック反応ダイナミクスとメカニズムの解明 (2009)
  • Author(s): 宮坂博
  • Organizer: レーザー学会第29回年次大会講演
  • Place of Presentation: 徳島大学
  • Year and Date: 2009-01-12
• [Presentation] Ultrafast dynamics of photochromic reactions in diarylethene derivatives. (2008)
  • Author(s): H.Miyasaka
  • Organizer: Invited Lecture in "Japan-France Joint Seminar on New Horizons of Photochromism .From Design of Molecules to Applications"
  • Place of Presentation: Arras, France
  • Year and Date: 20081012-20081015
• [Presentation] Laser InducedMultiphoton Gated Photochromic Reaction in Diarylethene and Fulgide Derivatives (2008)
  • Author(s): H.Miyasaka
  • Organizer: Invited Lecture in International Colloquium on Physical Chemistry
  • Place of Presentation: Tohoku University
  • Year and Date: 20080905-20080906
• [Book] 分子の時間を経験してみよう(反応すれば形が変わるナノの世界～細胞から結晶まで～、増原、入江ら編、クバプロ) (2009)
  • Author(s): 宮坂博
  • Total Pages: 87-96
• [Book] Construction of Micro-Spectroscopic Systems and their Application to the DetectDynamics in a Small Domain(Wiley-VCH) (2009)
  • Author(s): Syoji Ito, Hirohisa Matsuda, Takashi Sugiyama, Naoki Toitani, Yutaka Nagasawa, Hiroshi Miyasaka, in Molecular Nano Dynamics, Eds. H. Fukumura, M. Irie, Y. Iwasawa, H.Masuhara, K.Uosaki
  • Total Pages: 133-154
  • Publisher: Wiley-VCH, Weinheim
• [Remarks] ホームページ等
  • URL: http://www.laser.chem.es.osaka-u.ac.jp/