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Development of High Field High Frequency EPR and Application to Studies on the Excited States

Research Project

Project/Area Number 19350003
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionTohoku University

Principal Investigator

YAMAUCHI Seigo  Tohoku University, 多元物質科学研究所, 教授 (10127152)

Co-Investigator(Kenkyū-buntansha) OHBA Yasunori  東北大学, 多元物質科学研究所, 准教授 (10176985)
MATSUOKA Hideto  東北大学, 多元物質科学研究所, 助教 (90414002)
イスラム サイフル  東北大学, 多元物質科学研究所, 助教 (80431469)
Co-Investigator(Renkei-kenkyūsha) AKIYAMA Kimio  東北大学, 多元物質科学研究所, 准教授 (10167851)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2008: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2007: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Keywords高周波ESR / WバンドESR / 時間分解ESR / 励起三重項 / 電子スピン / 金属錯体 / 光合成 / イオン対 / パルスESR / 励起状態 / 励起三重項状態 / 励起多重項状態 / ESRパラメータ / 化学物理 / 光物性 / 磁性 / 高磁場ESR
Research Abstract

分子の構造などを解析する手段の一つである電子スピン共鳴(ESR)装置を、励起状態や光化学の研究用に大改造した。主な点は、高効率な光照射と極めて早い時間の測定である。これを用いて、ELなどで重要な金属錯体の最低励起状態をESRで観測して、性質の起源が他の励起状態との相互作用であることを解明し、その状態を特定した。また、植物の光合成系で重要な電子移動の解析を行い、2つのルートのうち一つが支配的であることを明らかにした。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (25 results)

All 2009 2008 2007 Other

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (9 results) Book (2 results) Remarks (3 results)

  • [Journal Article] Shifts of g Values in the Excited Triplet States of Metal Complexes Studied by Time-Resolved W-band EPR2009

    • Author(s)
      S. Yamauchi, M. Tanabe, K. Takahashi, S. S.M. Islam, H. Matsuoka and Y. Ohba
    • Journal Title

      Appl. Magn. Reson (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Intermolecular Hydrogen Bonds between a Radical and a Diamagnetic Matrix : cw-W-band ESR Investigations of 2,6-di-tert butyl-4- hydroxymethyl phenol2009

    • Author(s)
      T. Yamaji, I. SM. Saiful, M. Baba, S. Yamauchi, J. Yamauchi
    • Journal Title

      Bull. Chem. Soc. Jpn. 82

      Pages: 58-64

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Shifts of g Values in the Excited Triplet States of Metal Complexes Studied by Time-Resolved W-band EPR2009

    • Author(s)
      S. Yamauchi, et.al.
    • Journal Title

      Appl. Magn. Reson. (印刷中)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intermolecular Hydrogen Bonds between a Radical and a Diamagnetic Matrix : CW-ESR Investigations of 2, 6-di-tert-butyl-4-hydroxymethyl phenol2009

    • Author(s)
      T. Yamaji, et.al.
    • Journal Title

      Bull. Chem. Soc. Jpn. 82

      Pages: 58-64

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Facile Generation of a Tetramethyleneethane Type Radical Cation and Biradical Utilizing a 3, 4-Di (α-Styryl) furan and a Photginduced ET and Back Sequence2008

    • Author(s)
      T. Ikeda, et.al.
    • Journal Title

      J. Am. Chem. Soc. 130

      Pages: 2466-2472

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Facile Generation of a Tetramethyleneethane Type Radical Cation and Bi-radical Utilizing a 3, 4-Di(α-styryl)furan and a Photoinduced ET and Back Sequence2008

    • Author(s)
      T. Ikeda, et. al.
    • Journal Title

      J. Am. Chem. Soc., 130

      Pages: 2466-2472

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin Coupling in the Supramolecular Structure of a New Tetra(Quinoline-TEMO)Yttrium(III)Complex2007

    • Author(s)
      L. Maretti, M. Ferbinteanu, F. Cimpoesu, I. SM Saiful, Y. Ohba, T. Kajiwara, M. Yamashita, S. Yamauchi
    • Journal Title

      Inorg. Chem. 46

      Pages: 660-669

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Spin Coupling in the Supramolecular Structure of a New Tetra(Quinoline-TEMO)Yttrium(III)Complex2007

    • Author(s)
      L. Maretti, et. al.
    • Journal Title

      Inorg. Chem., 46

      Pages: 660-669

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EPR and ENDOR Studies of the Distal Coordination of Shark Heart Myoglobin2007

    • Author(s)
      Y. Ohba, et. al.
    • Journal Title

      Appl. Magn, . Reson., 31

      Pages: 527-540

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Substituent Effect on g-Tensor: Multi-frequency ESR Study and DFT Calculation of Polycrystalline Phenoxyl Radical Derivatives in Diamagnetic Crystals2007

    • Author(s)
      T. Yamaji, et. al.
    • Journal Title

      J. Phys. Chem. A 111

      Pages: 4612-4619

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Selective Inclusion of Electron-Donating Molecules into Porphyrin Nano-channels Derived from the Self-Assembly of Saddle-Distorted, rotpnated Porphyrins and Photoinduced Electron Transfer from Guest Molecules to Porphyin Dications2007

    • Author(s)
      T. Kojima, et. al.
    • Journal Title

      Chem. Eur. J., 13

      Pages: 1172-1179

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Time-Resolved 95 GHz EPR Studies on the Excited States2008

    • Author(s)
      S. Yamauchi, I. Saiful, Y. Ohba, and V. Tarasov
    • Organizer
      APES(6th Asia Pacific EPR/ESR Symposium)
    • Place of Presentation
      Cairns, Australia
    • Year and Date
      2008-07-18
    • Related Report
      2008 Final Research Report
  • [Presentation] Time-Resolved 95 GHz EPR Studies on the Excited States2008

    • Author(s)
      Seigo Yamauchi
    • Organizer
      6^<th> APES (Asia Pacific EPR / ESR Symposium)
    • Place of Presentation
      Cairns, Australia
    • Year and Date
      2008-07-18
    • Related Report
      2008 Annual Research Report
  • [Presentation] Studies on the Excited States by means of Various EPR Techniques2007

    • Author(s)
      S. Yamauchi
    • Organizer
      ISESS-SEST 2007
    • Place of Presentation
      Shizuoka, Japan
    • Year and Date
      2007-11-08
    • Related Report
      2008 Final Research Report
  • [Presentation] Studies on the Excited States by means of Various EPR Techniques2007

    • Author(s)
      Seigo Yamauchi
    • Organizer
      ISESS-SEST 2007
    • Place of Presentation
      Shizuoka(Japan)
    • Year and Date
      2007-11-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] New Aspects of W-band EPR on the Studies of Excited states2007

    • Author(s)
      S. Yamauchi
    • Organizer
      Zavoisky 100
    • Place of Presentation
      Kazan, Russia
    • Year and Date
      2007-09-27
    • Related Report
      2008 Final Research Report
  • [Presentation] New Aspects of W-band EPR on the Studies of Excited states2007

    • Author(s)
      Seigo Yamauchi
    • Organizer
      Zavoisky 100
    • Place of Presentation
      Kazan(Russia)
    • Year and Date
      2007-09-26
    • Related Report
      2007 Annual Research Report
  • [Presentation] 時間分解ESRによる励起多重項状態研究の新展開2007

    • Author(s)
      山内 清語
    • Organizer
      物理化学コロキウム
    • Place of Presentation
      山形
    • Year and Date
      2007-09-22
    • Related Report
      2007 Annual Research Report
  • [Presentation] Advantages of W-band EPR Studies on the Excited Spin Multiplet States in Solid Solution2007

    • Author(s)
      Seigo Yamauchi
    • Organizer
      10th International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena
    • Place of Presentation
      Venice(Italy)
    • Year and Date
      2007-06-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] 高周波ESRの魅力2007

    • Author(s)
      山内 清語
    • Organizer
      日本化学会第87春季年会
    • Place of Presentation
      吹田
    • Year and Date
      2007-03-26
    • Related Report
      2007 Annual Research Report
  • [Book] ESR法(第8章)2007

    • Author(s)
      山内清語, 生駒忠昭
    • Publisher
      第5版実験化学講座20-1分析化学丸善
    • Related Report
      2008 Final Research Report
  • [Book] 第5版 実験科学講座20-1 分析化学 第8章 ESR法2007

    • Author(s)
      山内清語, 生駒忠昭
    • Publisher
      丸善
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://db.tagen.tohoku.ac.jp/php/db/

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://db.tagen.tohoku.ac.jp/php/db/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.tagen.tohoku.ac.jp/labo/yamauchi/index-j.html

    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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