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2007 Fiscal Year Final Research Report Summary

Advanced investigations on a methodology called election-transfer sapped flow method

Research Project

Project/Area Number 16350042
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Analytical chemistry
Research InstitutionKyoto University

Principal Investigator

OYAMA Munetaka  Kyoto University, Graduate School of Engineering, Associate Professor (90221861)

Project Period (FY) 2004 – 2007
KeywordsStopped-flow method / Electron transfer reaction / cation radicals / Aromatic amines / Dimerization reaction / reaction mechanism / precursor effect / Electro-oxidation
Research Abstract

In this project, as the advanced investigations of the electron-transfer stopped flow method, we analyzed the reactions of short lived aromatic cation radicals in acetonitrile. For the reactions of anisidine and N-methyl anisidine cation radicals, it was found that the reaction mechanism changed as well as the reactivity. In addition, the electron-transfer stopped-flow method was revealed the effects of the substituents on the meta-and ortho- positions in the reactions of aniline derivative cation radicals and the differences in the reactivity of the dimmer and trimer cation radicals of thiophene derivative. In relation with the former case, systematic investigations were performed for the meta- chloro-, methyl- and methoxy-substituted diphenylamine cation radicals in acetonitrile. As the result, it was clarified from the kinetic view point that there are the two types of the consecutive reactions, i.e., the cation radical-cation radical coupling reaction and to the cyclization reaction of single cation radical depending on the substituents.
Furthermore, the electron-transfer stopped flow method was applied to the measurement of the time-resolved visible absorption spectra of the cation radicals and dications of triarylamine derivative molecules, which should give information about the, reactivity and the stability depending on the substituents and molecular structures. Consequently, some bulky substituents were found to affect the reactivities of the di cations significantly. In addition, the electronic optical properties of the oxidized states of amine-based organic high-spin systems were investigated.

  • Research Products

    (26 results)

All 2007 2006 2005 2004

All Journal Article (18 results) (of which Peer Reviewed: 9 results) Presentation (8 results)

  • [Journal Article] Amine-based organic high-spin systems; Synthesis, electrochemical and spectroscopic studies of polyalkylated one-dimensional oligoaryl triamines2007

    • Author(s)
      Masafumi Yano
    • Journal Title

      Polyhedron 26

      Pages: 2008-2012

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Synthesis and properties of a redox active ligand with bispicorylamino groups and its dinuclear complex2007

    • Author(s)
      Masafumi Yano
    • Journal Title

      Polyhedron 26

      Pages: 2174-2178

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Amine-based organic high-spin systems ; Synthesis, electrochemical and spectroscopic studies of polyalkylated one-dimensional oligoaryl triamines2007

    • Author(s)
      Masafumi, Yano
    • Journal Title

      Polyhedron 26

      Pages: 2008-2012

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Synthesis and properties of a redox active ligand with bispicorylamino groups and its dinuclear complex2007

    • Author(s)
      Masafumi, Yano
    • Journal Title

      Polyhedron 26

      Pages: 2174-2178

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Reaction Analysis of 3-Substituted-diphenylamine Cation Radicals in Acetonitrile. Cyclization Reaction vs. Benzidine Formation2006

    • Author(s)
      Munetaka Oyama
    • Journal Title

      Electrochemistry 74

      Pages: 649-655

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Reaction Analysis of 3-Substituted-diphenylamine Cation Radicals in Acetonitrile. Cyclization Reaction vs. Benzidine Formation2006

    • Author(s)
      Munetaka, Oyama
    • Journal Title

      Electrochemistry 74

      Pages: 649-655

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Synthesis and properties of a triarylamine derivative with a coordination site and its copper(II)complexes2005

    • Author(s)
      Masafumi Yano
    • Journal Title

      Polyhedron 24

      Pages: 2112-2115

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Organic high-spin systems of oligoarylamines: Properties of tetraaryl-m-phenylendiamine oligocations as examined by electron transfer stopped-flow method2005

    • Author(s)
      Masafumi Yano
    • Journal Title

      Polyhedron 24

      Pages: 2116-2120

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Synthesis, electrochemical and spectroscopic studies of highly extended tetraary1-m-phenylenediamines as precursors of ground-state triplet dications2005

    • Author(s)
      Masafumi Yano
    • Journal Title

      Polyhedron 24

      Pages: 2121-2125

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Synthesis and properties of a triarylamine derivative with a coordination site and its copper (II) complexes2005

    • Author(s)
      Masafumi, Yano
    • Journal Title

      Polyhedron 24

      Pages: 2112-2115

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Organic high-spin systems of oligoarylamines : Properties of tetraaryl-m-phenylendiarnine oligocations as examined by electron transfer stopped-flow method2005

    • Author(s)
      Masafumi, Yano
    • Journal Title

      Polyhedron 24

      Pages: 2116-2120

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Synthesis, electrochemical and spectroscopic studies of highly extended tetraaryl-m-phenylenediamines as precursors of g round-state triplet dications2005

    • Author(s)
      Masafumi, Yano
    • Journal Title

      Polyhedron 24

      Pages: 2121-2125

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Kinetic analysis of the reactions of p-anisidine and N-methyl-p-anisidine cation radicals in acetonitrile using an electron-transfer stopped-flow method2004

    • Author(s)
      Masashi Goto
    • Journal Title

      Journal of Physical Chemistry A 108

      Pages: 3980-3986

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Spectroscopic investigation of oxidation products of ortho-or meta-substituted a niline derivatives in acetonitrile using an electron-transfer stopped-flow method2004

    • Author(s)
      Munetaka Oyama
    • Journal Title

      Electrochimica Acta 49

      Pages: 3801-3806

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Kinetics analysis of the reactions of 1-substituted pyrene cation radicals with water in acetonitrile2004

    • Author(s)
      Munetaka Oyama
    • Journal Title

      Journal of Electroanalytical Chemistry 570

      Pages: 77-82

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Kinetic analysis of the reactions of p-anisidine and N-methyl-p-anisidine cation radicals in acetonitrile using an electron-transfer stopped-flow method2004

    • Author(s)
      Masashi, Goto
    • Journal Title

      Journal of Physical Chemistry 108

      Pages: 3980-3986

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Spectroscopic investigation of oxidation products of ortho- or meta- substituted aniline derivatives in acetonitrile using an electron-transfer stopped-flow method2004

    • Author(s)
      Munetaka, Oyama
    • Journal Title

      Electrochimica Acta 49

      Pages: 3801-3806

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Kinetics analysis of the reactions of 1-substituted pyrene cation radicals with water in acetonitrile2004

    • Author(s)
      Munetaka, Oyama
    • Journal Title

      Journal of Electroanalytical Chemistry 570

      Pages: 77-82

    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] 一次元型オリゴアリールテトラミン高スピン分子前駆体の多電子酸化2007

    • Author(s)
      津田章平
    • Organizer
      第53回ポーラログラフィー及び電気分析化学討論会
    • Place of Presentation
      神戸大学
    • Year and Date
      2007-11-24
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Multi-electron oxidation of one-dimensional oligo-aryltertamines as precursors of high spin states (in Japanese)2007

    • Author(s)
      Shohei, Tsuda
    • Organizer
      53rd Polarographic Society Meeting
    • Place of Presentation
      Kobe University
    • Year and Date
      2007-11-24
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Spectroscopic analysis of the reaction processes of the ethylenedioxythiophene cation radical in acetonitrile2004

    • Author(s)
      Kenji Hoshiko
    • Organizer
      55th Annual Meeting of the International Society of Electrochemistry
    • Place of Presentation
      Thessaloniki, Greece
    • Year and Date
      2004-09-22
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Spectroscopic analysis of the reaction processes of the ethylenedioxythiophene cation radical in acetonitrile2004

    • Author(s)
      Kenji, Hoshiko
    • Organizer
      55th Annual Meeting of the Inter-national Society of Electrochemistry
    • Place of Presentation
      Thessaloniki, Greece
    • Year and Date
      2004-09-22
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] エチレンジオキシチオフェン単量体および二量体カチオンラジカルの溶液内反応2004

    • Author(s)
      星子賢二
    • Organizer
      第28回エレクトロオーガニックケミストリー討論会
    • Place of Presentation
      九州大学
    • Year and Date
      2004-06-18
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Reactions of the cation radicals of ethylenedioxy-thiophene monomer and dimer in acetonitrile (in Japanese)2004

    • Author(s)
      Kenji, Hoshiko
    • Organizer
      28th Electro-oraganic Chemistry Meeting
    • Place of Presentation
      Kyushu University
    • Year and Date
      2004-06-18
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Spectroscopic Study on the Reactivity of N,N-Dimethyl-p-Substituted Aniline Cation Radicals in Acetonitrile2004

    • Author(s)
      Munetaka Oyama
    • Organizer
      205th The Electrochemical Society Meeting
    • Place of Presentation
      San Antonio, TX, USA
    • Year and Date
      2004-05-12
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Spectroscopic Study on the Reactivity of N,N-Dimethyl-p-Substituted Aniline Cation Radicals in Acetonitrile2004

    • Author(s)
      Munetaka, Oyama
    • Organizer
      205th The Electrochemical Society Meeting
    • Place of Presentation
      San Antonio, TX, USA Kenji, Hoshiko
    • Year and Date
      2004-05-12
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2010-02-04  

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