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Ecternal Control of Electron Transfer Reaction at an Interface

Research Project

Project/Area Number 03650655
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 工業物理化学・複合材料
Research InstitutionHokkaido University

Principal Investigator

NAKAMURA Hiroshi  Hokkaido Univ., Fac. of Sci., Professor, 理学部, 教授 (00117194)

Co-Investigator(Kenkyū-buntansha) YONEMURA Hiroaki  Kyushu Univ., Fac. of Eng., Assistant Professor, 工学部, 助手 (40220769)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1992: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1991: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsReverse micelle / Radical pair / Electron Transfer / Exchange term / Electron spin echo / Time resolved ESR / CIDEP / 励起三重項 / 時間分解ESRスペクトル / トリプレットメカニズム / ラジカル間相互作用
Research Abstract

Photoinduced electron transfer reactions between electron donor and acceptor was investigated in an interface of molecular assemblies such as AOT reversed micelle.
1. Conformation of the D-A linked compound was studied in an aqueous media. Through-ring cyclodextrin (CD) complex of D-A linked compound were investigated by means of high resolution NMR spectra, and thermodynamic parameter such as complex formation constants and formation rate constants with DELTAGs were obtained. These parameter shows that the hydrophobic interaction between the cavity of CD and the alkyl chain of D-A dominantly determined the stabilities of the complexes, statically. However, the repulsion between the hydrophilicity of the head group of D-A molecule and hydrophilic cavity of CD cased the anomalously stable complexation.
2. Electron spin-echo investigation shows the situation of a radical moiety of the donor molecule in the micelles. And, the alkyl chain length and the charge of the radical and the surface of the micelles governs the situation in the molecular assemblies.
3. Time resolved electron spin resonace equipment was manufactured, and time resolved ESR (or CIDEP) spectra were able to be obtained. In aqueous media, the spectra were hardly obtained by low Q-values, but AOT reversed micelle media gave a good result for measurements of CIDEP spectra. The CIDEP spectra shows that the magnetic field effects for the reverse electron transfer are governed by the electron exchange interaction between the radical pairs of the D-A systems.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] P.Balioni: "“Electron Spin Echo Modulation Study of AOT Reverse Micelles"" The Jouranal of Physical Chemistry. 95. 3856-3859 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] P.Batt: ""Photoionization of Neutral and Positively Charged Alkylpheno-thiazines in Positive,Neutral,and Negatively Chaged Vesicles:Effects of the Alkyl Chain Length"" The Journal of Physical Chemistry. 95. 6399-6402 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] M.WATANABE: ""Formation of Through-Ring α-Cyclodextrin Complexes with α,β-Alkane-dicarboxylate Anion.Effects of the Aliphatic Chain Length and Electrostatic Factors on the Complexation Behavior"" Bulletin of the Chemical Society of Japan. 65. 164-169 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.YONEMURA: ""Magnetic Field Effects on Photoinduced Electron Transfer and the Succeding Processes in Phenothiazine-Viologen Linked Compounds Incorporated into Cyclodextrins or Reversed Micelles"" Chemicaol Physics. 162. 69-78 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.YONEMURA: ""Spectroscopic Studies on Exchange Properties in Through-Ring Cyclodextrin Complexes of Carbozole-Viologen Linked Compounds:Effects of Spacer Chain Length"" The Journal of Physical Chemistry. 96. 5765-5770 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.NAKAMURA: ""Time Resolved Electron Spin Resonance Spectra of Linked Radical Pairs on Laser Excitation of Zinc Tetraphenylporphyrin-Viologen Systems"" The Journal of Physical Chemistry. 97. 534-536 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] P. Baglioni, H. Nakamura, L. Kevan: "Electron Spin Echo Modulation Study of AOT Reverse Micelles" The Journal of Physical Chemistry. Vol.95,No.9. pp. 3856-3859 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] P. Batt, Y. S. Kang, L. Kevan, H. Nakamura, T. Matsuo: "Photoionization of Neutral and Positively Charged Alkyl-phenothiazines in Positive, Neutral, and Negatively Chaged Vesicles: Effects of the Alkyl Chain Length" The Journal of Physical Chemistry. Vol.95,No.17. pp. 6399-6402 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] M. Watanabe, H. Nakamura, T. Matsuo: "Formation of Through-Ring alpha-Cyclodextrin Complexes with alpha,omega-Alkane-dicarboxylate Anion. Effects of the Aliphatic Chain Length and Electrostatic Factors on the Complexation Behavior" Bulletin of the Chemical Society of Japan. Vol.65,No.1. pp. 164-169 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H. Yonemura, H. Nakamura, T. Matsuo: "Magnetic Field Effects on Photoinduced Electron Transfer and the Succeeding Processes in Phenothiazine-Viologen Linked Compounds Incorporated into Cyclodextrins or Reversed Micelles" Chemical Physics. Vol.162. pp. 69-78 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H. Yonemura, M. Kasahara, H. Saito, H. Nakamura, T. Matsuo: "Spectroscopic Studies on Exchange Properties in Through-Ring Cyclodextrin Complexes of Carbozole-Viologen Linked Compounds: Effects of Spacer Chain Length" The Journal of Physical Chemistry. Vol.96,No.14. pp. 5765-5770 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H. Nakamura, S. Usui, Y. Matsuda, T. Matsuo, K. Maeda, T. Azumi: "Time Resolved Electron Spin Resonance Spectra of Linked Radical Pairs on Laser Excitation of Zinc Tetraphenylporphyrin-Viologen Systems" The Journal of Physical Chemistry. Vol.97,No.3. pp. 534-536 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Y.Kubozono: "The Structure and Dynamics of 1,3,5-Cycloheptatriene and 1,3-Cycloheptadiene Radical Cations in Low-Temperature Matrices. An ESR Investigation" Chemical Physics. 160. 421-426 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Yonemura: "Magnetic Field Effects on Photoinduced Electron Transfer and the Succeeding Processes in Phenothiazine-Viologen Linked Compounds Incorporated into Cyclodextrins or Reversed Micelles" Chemical Physics. 162. 69-78 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Yonemura: "Spectroscopic Studies on Exchange Properties in Through-Ring Cyclodextrin Complexes of Carbazole-Viologen Linked Compounds:Effects of Spacer Chain Length" The Journal of Physical Chemistry. 96. 5765-5770 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Matsuo: "Optical Second Harmonic Generation from Ultrathin Polymer Films Impregnated with Ruthenium Polypyridine Complexes" Chemistry Letters. 2363-2366 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Nakamura: "Time Resolved Electron Spin Resonance Spectra of Linked Radical Pairs on Laser Excitation of Zinc Tetraphenylporphyrin-Viologen Systems" The Journal of Physical Chemistry. 97. 534-536 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Hiroshi Nakamura: "Photoionization of Phenothiazinylーand(Carbazolylalkyl)triーmethylammonium Bromides in Frozen AOT Reversed Micellar Solution Studied by Electron Spin Echo Modulation and Electron Spin Resonance" The Journal of Physical Chemistry. 95. 1480-1484 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Piero Baglioni: "Electron Spin Echo Modulation Study of AOT Reverse Micelles" The Journal of Physical Chemistry. 95. 3856-3859 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Peter Bratt: "Photoionization of Neutral and Positively Charged Alkylphenothiーazines in Positive,Neutral,and Negatively Charged Vesicles:Effects of the Alkyl Chain Length" The Journal of Physical Chemistry. 95. 6399-6402 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Yoshihiro Kubizono: Zeitshrift fur Naturforschung. Structure and Reactions of Radicals Derived from Cyclopentane,Cyclopentenes,and Cyclohexenes in LowーTemperature Matrices.An ESR Study. 993-1000 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Midori Watanabe: "Formation of ThroughーRing αーCyclodextrin Complexes with α,wーAlkanedicarboxylate Anion.Effects of the Aliphatic Chain Length and Electrostatic Factors on the Complexation Behavior" Bulletin of Chemical Society of Japan. 65. 164-169 (1992)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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