• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study on non-dissociative bimolecular reactions characteristic of contact molecular pairs

Research Project

Project/Area Number 17350005
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

SHIBUYA Kazuhiko  Tokyo Institute of Technology, Dept. of Chemistry, Professor, 大学院・理工学研究科, 教授 (30126320)

Co-Investigator(Kenkyū-buntansha) TUJI Hidekazu  Gunma National College of Technology, Associate Professor, 一般科, 助教授 (40262258)
Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥15,200,000 (Direct Cost: ¥15,200,000)
Fiscal Year 2006: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2005: ¥12,200,000 (Direct Cost: ¥12,200,000)
Keywordsozone / water complex / photochemistry / hydroxyl radical / atmospheric chemistry / O(^1D) / IR spectroscopy / reaction mechanism / 化学物理 / 環境変動 / 自然現象観測・予測 / 地球化学 / 地球科学
Research Abstract

Ozone-water complex has been suggested as one of the hydroxyl radical sources in the Earth's troposphere. Complexation with water vapor might change the O_3 photochemistry, which might play a crucial role in the production of hydroxyl radical. We have characterized the spectroscopy of O_3-H_2O complex. In this research, the photochemistry of ozone-water complex isolated in cryogenic matrices was studied. Neon, argon, and krypton were employed as matrix media to study the so-called matrix cage effect and to develop the solid state chemistry to the gas phase reaction. Wavelength dependence of photochemistry was studied by using UV and visible light.
Ozone ν_3 fundamental region was chosen to monitor the occurrence of ozone photo-dissociation within the monomer and ozone-water complex, because the ν_3 fundamental of the ozone-water complex was fully separated from the monomer ν_3 band. In a neon matrix, the irradiation by 355 nm led to the decreases of ozone monomer and ozone water complex and to the formation of hydrogen peroxide. Apparently the photo-dissociation of ozone was found to take place even at 355 nm. In argon and krypton matrices, the formation of hydrogen peroxide-water complex was also observed, which is thought to be formed from an inter-cage reaction of cage-exited O(^1D) atom with water dimer in a different cage. A hydrogen peroxide formation yield in a neon matrix is estimated to be almost unity, whereas those in argon and krypton exceed unity because of the inter-cage reaction. We concluded that neon is most appropriate media for studying the photochemistry of ozone-water complex. Wavelength dependence was studied in the solid neon. The 254- and 313-nm irradiations gave the similar results at the 355 nm irradiation, but the 365- and 633-nm irradiation did not induce any photochemical reaction. We will discuss the photochemical mechanism (dependence of wavelength and matrix cage) and the implication of the atmospheric ozone chemistry.

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (18 results)

All 2007 2006 2005

All Journal Article (18 results)

  • [Journal Article] Infrared spectroscopy of ozone-water complex in a neon matrix2007

    • Author(s)
      M.Tsuge, K.Tsuji, A.Kawai, K.Shibuya
    • Journal Title

      J Phys. Chem. A 111

      Pages: 3540-3547

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Infrared spectroscopy of ozone-water complex in a neon matrix2007

    • Author(s)
      M.Tsuge, K.Tsuji, A.Kawai, K.Shibuya
    • Journal Title

      J.Phys.Chem.A 111

      Pages: 3540-3547

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Infrared spectroscopy of ozone-water complex in a neon matrix2007

    • Author(s)
      M.Tsuge, K.tsuji, A.Kawai, K.Shibuya
    • Journal Title

      J. Phys. Chem. A (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Jet Spectroscopy of Arylmethyl Radicals in the Visible Region : Assignment of Low-Frequency Vibrational Modes in Diphenylmethyl and Chlorodiphenylmethl Radicals2006

    • Author(s)
      M.Tsuge, S.Hamatani, A.Kawai, K.Tsuji, K.Shibuya
    • Journal Title

      Phys. Chem. Chem. Phys. 8

      Pages: 256-263

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Electron Spin Dynamics of Triplet and Doublet Molecules in Room Temperature Ionic Liquids Studied by A Time-resolved EPR Method2006

    • Author(s)
      A Kawai, T.Hidemori, K.Shibuya
    • Journal Title

      Mol. Phys. 104

      Pages: 1573-1579

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Enhanced intersystem crossing of S_1-T_1 and T_1-S_0 in coronene-galvinoxyl systems as studied by a pulsed ESR method2006

    • Author(s)
      H.Terazono, A.Kawai, K.Tsuji, K Shibuya
    • Journal Title

      J. Photochem. Photobio. A : Chem. 183

      Pages: 22-30

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Electron spin dynamics in radical and electronically-excited molecular pair interaction as studied a time-resolved ESR method2006

    • Author(s)
      A Kawai, K. Shibuya
    • Journal Title

      J. Photochem Photobio. C : Photochemistry Reviews 7

      Pages: 89-103

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Jet Spectroscopy of Arylmethyl Radicals in the Visible Region : Assignment of Low-Frequency Vibrational Modes in Diphenylmethyl and Chlorodiphenylmethyl Radicals2006

    • Author(s)
      M.Tsuge, S.Hamatani, A.Kawai, K.Tsuji, K.Shibuya
    • Journal Title

      Phys.Chem.Chem.Phys. 8

      Pages: 256-263

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Electron spin dynamics in radical, electronically-excited molecular pair interaction as studied a time-resolved ESR method2006

    • Author(s)
      A.Kawai, K.Shibuya
    • Journal Title

      J.Photochem.Photobio.C : Photochemistry Reviews 7

      Pages: 89-103

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Enhanced intersystem crossing of S_1-T_1 and T_1-S_0 in coronene-galvinoxyl systems as studied by a pulsed ESR method2006

    • Author(s)
      H.Terazono, A.Kawai, K.Tsuji, K.Shibuya
    • Journal Title

      J.Photochem.Photobio.A : Chem. 183

      Pages: 22-30

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Electron Spin Dynamics of Triplet and Doublet Molecules in Room Temperature Ionic Liquids Studied by A Time-resolved EPR Method2006

    • Author(s)
      A.Kawai, T.Hidemori, K.Shibuya
    • Journal Title

      Mol.Phys. 104[10-11]

      Pages: 1573-1579

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Electron Spin Dynamics of Triplet and Doublet Molecules in Room Temperature Ionic Liquids Studied by A Time-resolved EPR Method2006

    • Author(s)
      A.Kawai, T.Hidemori, K.Shibuya
    • Journal Title

      Mol. Phys. 104

      Pages: 1573-1579

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Enhanced intersystem crossing of S_1-T_1 and T_1-S_0 in coronene-galvinoxyl systems as studied by a pulsed ESR method2006

    • Author(s)
      H.Terazono, A.Kawai, K.Tsuj, K.Shibuya
    • Journal Title

      J. Photochem. Photobio. A : Chem. 183

      Pages: 22-30

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Electron spin dynamics in radical and electronically-excited molecular pair interaction as studied a time-resolved EPR method2006

    • Author(s)
      A.Kawai, K.Shibuya
    • Journal Title

      J. Photochem. Photobio. C : Photochemistry Reviews 7

      Pages: 89-103

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Jet Spectroscopy of Arylmethyl Radicals in the Visible Region : Assignment of Low-Frequency Vibrational Modes in Diphenylmethyl and Chlorodiphenylmethl Radicals2006

    • Author(s)
      M.Tsuge, S.Hamatani, A.Kawai, K.Tsuji, K.Shibuya
    • Journal Title

      Phys.Chem.Chem.Phys. 8

      Pages: 256-263

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Evidence for a non-planar conformer and conformational isomerization of o-fluoroanisole in a low-temperature Ar matrix2005

    • Author(s)
      T.Isozaki, K.Sakeda, T.Suzuki, T.Ichimura, K.Tsuji, K.Shibuya
    • Journal Title

      Chem.Phys.Letters 409[1-3]

      Pages: 93-97

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Experimental product study of the OH-initiated oxidation of m-xylene2005

    • Author(s)
      J.Zhao, R.Zhang, K.Misawa, K.Shibuya
    • Journal Title

      J.Photochem.Photobio.A : Chem. 176

      Pages: 199-207

    • Related Report
      2005 Annual Research Report
  • [Journal Article] N(^4S) Formation following 193,3 nm ArF laser irradiation of NO and NO_2 and its application to kinetic studies of N(^4S) reactions with NO and NO_22005

    • Author(s)
      T.Nakayama, K.Takahashi, Y.Matsumi, K.Shibuya
    • Journal Title

      J.Phys.Chem.A 109

      Pages: 10897-10902

    • Related Report
      2005 Annual Research Report

URL: 

Published: 2005-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi