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2009 Fiscal Year Final Research Report

Development of pico-second time-resolved magnetic resonance spectrometer and its application for study of photochemical processes

Research Project

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Project/Area Number 19350008
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionTokyo Institute of Technology

Principal Investigator

KAWAI Akio  Tokyo Institute of Technology, 大学院・理工学研究科, 准教授 (50262259)

Project Period (FY) 2007 – 2009
Keywords超高速磁気共鳴 / 光化学 / スピン分極 / 光物理 / 超精密計測 / ラジカル
Research Abstract

MRIなどに代表されるような広い分野で活用される磁気共鳴装置は、短寿命活性化学種の観測には不向きな装置である。この問題点の解決を目指し、最高でピコ秒時間分解能をもつ磁気共鳴分光装置を、レーザー光磁気効果を利用した原理に基づいて設計製作した。このような装置を用い、光化学反応や光物理過程で発生するスピン分極した常磁性分子の超高速観測実験を行い、装置の利点や欠点について総括した。

  • Research Products

    (16 results)

All 2010 2009 2008 2007 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (8 results) Remarks (1 results)

  • [Journal Article] CIDEP created by the quenching of photo-excited tryptophan at protein surface: A challenge to CIDEP probing of protein structural changes2010

    • Author(s)
      Akio Kawai, Shuichi Mori, Kazuhide Tsuji, Kazuhiko Shibuya
    • Journal Title

      Appl. Magn. Reson. 38

      Pages: 206-215

    • Peer Reviewed
  • [Journal Article] Photochromic Reaction of a Novel Room Temp-erature Ionic Liquid: 2-Phenylazo-1-hexyl-3-methylimidazolium Bis(pentafluoroethyl-sulfonyl) amide2010

    • Author(s)
      Akio Kawai, Daiki Kawamori, Tomoo Monji, Tooru Asaka, Nobuyuki Akai, Kazuhiko Shibuya
    • Journal Title

      Chem. Lett. 39

      Pages: 230-231

    • Peer Reviewed
  • [Journal Article] Kinetic study on the photoabsorption process of gaseous O2 dimol at 630 nm in a wide pressure range2010

    • Author(s)
      Akira Ida, Eiji Furui, Nobuyuki Akai, Akio Kawai, Kazuhiko Shibuya
    • Journal Title

      Chem. Phys. Lett. 488

      Pages: 130-134

    • Peer Reviewed
  • [Journal Article] Photochromism of 3-butyl-1-methyl-2-phenylazoimidazolium in room temp-erature ionic liquids2010

    • Author(s)
      Tooru Asaka, Nobuyuki Akai, Akio Kawai, Kazuhiko Shibuya
    • Journal Title

      J. Photochem. Photobiol. A Chemistry 209

      Pages: 12-18

    • Peer Reviewed
  • [Journal Article] EPR Study on Rotational Diffusion inViscous Ionic Liquids: Analysis by a Fractional Stokes-Einstein-Debye Law2009

    • Author(s)
      Yusuke Miyake, Takehiro Hidemori, Nobuyuki Akai, Akio Kawai, Kazuhiko Shibuya, Shinichi Koguchi, Tomoya Kitazume
    • Journal Title

      Chem. Lett 38

      Pages: 124-125

    • Peer Reviewed
  • [Journal Article] Cryogenic Neon Matrix-isolation FTIR Spectroscopy of Evaporated Ionic Liquids: Geometrical Structure of Cation Anion 1:1 Pair in the Gas Phase2009

    • Author(s)
      Nobuyuki Akai, Parazs David, Akio Kawai, Kazuhiko Shibuya
    • Journal Title

      J. Phys. Chem. B 113

      Pages: 4756-4762

    • Peer Reviewed
  • [Journal Article] Observation of collision-induced near-IR emission of singlet oxygen O2 a1g generated by visible light excitation of gaseous O2 dimol2009

    • Author(s)
      Eiji Furui, Akira Ida, Nobuyuki Akai, Akio Kawai, Kazuhiko Shibuya
    • Journal Title

      Chem. Phys. Lett 471

      Pages: 45-49

    • Peer Reviewed
  • [Presentation] Triplet excited state quenching by molecular oxygen in ionic liquids2010

    • Author(s)
      Takehiro Shiozaki, Nobuyuki Akai, Akio Kawai, Kazuhiko Shibuya
    • Organizer
      ACS meeting
    • Place of Presentation
      San Francisco, U.S.A.
    • Year and Date
      20100320-20100325
  • [Presentation] Spin polarization created at the quenching of photo-excited tryptophan by free radicals in solution and at protein surfaces2009

    • Author(s)
      Akio Kawai, Shuichi Mori, Kazuhiko Shibuya
    • Organizer
      11th International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena
    • Place of Presentation
      St. Catherines, Canada
    • Year and Date
      20090809-20090814
  • [Presentation] Photoand thermal-isomerization reactions of phenylazo substituted ionic liquids2009

    • Author(s)
      Akio Kawai, Kazuhiko Shibuya
    • Organizer
      Mejiro One-day Symposium on Ionic Liquids- Structure and Dynamics
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2009-06-30
  • [Presentation] Solvation and diffusion dynamics of paramagnetic molecules in ionic liquids as studied by EPR spectroscopy2008

    • Author(s)
      Akio Kawai, Takehiro Hidemori, Yusuke Miyake, Kazuhiko Shibuya
    • Organizer
      International Symposium on Structure and Dynamics of ionic liquids in Kanazawa
    • Place of Presentation
      Kanazawa, Japan
    • Year and Date
      20080902-20080903
  • [Presentation] Slow rotational motion of triplet porphyrin dimer in ionic liquids at room temperature as studied by time-resolved EPR spectroscopy2007

    • Author(s)
      Akio Kawai, Yusuke Miyake, Takehiro Shiozaki, Tohru Asaka, Takehiro Hidemori, Nobuyuki Akai, Kazuhiko Shibuya
    • Organizer
      A Joint Conference of the International Symposium on Electron Spin Science and the 46th Annual Meeting of the Society of Electron Spin Science and Technology
    • Place of Presentation
      Shizuoka, Japan
    • Year and Date
      20071106-20071109
  • [Presentation] Local solvated structure and slow rotational motion of paramagnetic molecules in room temperature ionic liquid2007

    • Author(s)
      Akio Kawai, Takehiro Hidemori, Yusuke Miyake, Tohru Asaka, Kazuhiko Shibuya
    • Organizer
      2nd International congress on ionic liquid
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      20070805-20070810
  • [Presentation] Rotational motion of photochemical intermediate paramagnetic molecules2007

    • Author(s)
      Akio Kawai, Takehiro Hidemori, Yusuke Miyake, Tohru Asaka, Kazuhiko Shibuya
    • Organizer
      Structure and Dynamics of ionic liquid
    • Place of Presentation
      Chiba, Japan
    • Year and Date
      20070802-20070804
  • [Presentation] CIDEP study on the quenching of singlet oxygen molecule by free radicals2007

    • Author(s)
      Akio Kawai, Takahito Fuse, Hajime Terazono, Kazuhiko Shibuya
    • Organizer
      IIX International Symposium on Magnetic Field and Spin Effects in Chemistry and Related Phenomena
    • Place of Presentation
      Venice, Italy
    • Year and Date
      20070618-20070623
  • [Remarks] 強光子場科学研究懇談JILS Newsletterに2009年2月に行った講演内容が掲載

    • URL

      http://www.jils.jp/

URL: 

Published: 2011-06-18   Modified: 2016-04-21  

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