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Exact Free Radical Kinetics related to Atmospheric reactions among Minor Constituents.

Research Project

Project/Area Number 13440180
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

WASHIDA Nobuaki  Kyoto University, Professor, 大学院・理学研究科, 教授 (70101045)

Co-Investigator(Kenkyū-buntansha) INOMATA Satoshi  National Institute for Environmental Studies Division of Atmospheric Environment, Senior Research Staff, 大気圏環境研究領域, 主任研究員 (80270586)
WAKABAYASHI Tomonari  Kyoto University, Assistant, 大学院・理学研究科, 助手 (30273428)
MOMOSE Takamasa  Kyoto University, Associate Professor, 大学院・理学研究科, 助教授 (10200354)
SATO Kei  National Institute for Environmental Studies Division of Atmospheric Environment, Senior Research Staff, 大気圏環境研究領域, 主任研究員 (10282815)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥15,000,000 (Direct Cost: ¥15,000,000)
Fiscal Year 2003: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2001: ¥7,800,000 (Direct Cost: ¥7,800,000)
KeywordsRate Constants / Isotope Effect / Free Radical / Photoionization Mass Spectrometer / Laser Induced Fluorescence / Reaction Mechanism / Atmospheric Chemistry / Sulfur Containing Radicals / ジメチルスルヒド / 硫黄化合物 / ピノキシラジカル / 同位体 / メチルラジカル
Research Abstract

The study of isotope effects on the rates and products of chemical processes has long been useful in increasing chemists understanding of the detailed nature of chemical reactions. While chemists have been studying isotope effects, other scientists have been using these measurements to aid in their interpretation of observations of isotopic composition of 'natural systems such as paleoclimatology,. oceanic circulation, atmospheric chemical transformation mechanisms, igneous rock geothermometry and the, evolutionary historyy of the solar system.
On the basic of above background, several methods how to measure the exact rate constants of chemical reactions, and how to measure the small difference to the rate constants between isotopes of molecules were investigated in the present study. The following studies were carried out.
(1) Sensitivity of photoionization mass spectrometer was improved to factor 100.
(2) Isotope effects for the rates of reaction of methyl radicals with oxygen were determined.
(2) Isotope effects for the rates of reaction of methyl radicals with oxygen were determined.
(3) Rate constants for reactions of sulfur containing radicals with R02 radicals were determined.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] S.Inomata: "Laser-Induced Fluorescence of the CHXCFO(X=F, Cl) Radicals."J.Chem.Phys.. 116. 6961-6972 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] R.Volkamer: "OH-Initiated Oxidation of Benzene. Part I. Phenol Formation under Atmospheric Conditions."Phys.Chem.Chem.Phys.. 4. 1598-1610 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] B.Klotz: "OH-Initiated Oxidation of Benzene. Part II. Influence of elevated NOX Concentrations."Phys.Chem.Chem.Phys.. 4. 4399-4411 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Imamura: "Rate Coefficient for the Reactions of CCl3 Radicals with Ozone."Int.J.Chem.Kinet.. 35. 310-316 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Kato: "Preferential Formation of Neutral C10 upon Laser Vaporized Graphite in He Gas as Studied by Photoionization Mass Spectroscopy with 10.5 eV Photons."J.Chem.Phys.. 118(2). 5390-5394 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 秋元肇 他編: "対流圏大気の化学と地球環境"学生出版センター. 223 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.inomata, et al.: "Laser-induced Fluorescence of the CHXCFO (X=F, Cl) Radicals."J. Chem. Phys.. 116. 6961-6972 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] R.Volkamer, ct al.: "OH-Initiated Oxidation of Benzene. Part I. Phenol Formation under Atmospheric Conditions."Phys. Chem. Chem. Phys.. 4. 1598-1610 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] B.Klotz, et al.: "OH-Initiated 0xidation of Benzene. Part II. Influence of elevated N0X Concentrations."Phys. Chem. Chem. Phys.. 4. 4399-4411 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.imatnura, et al.: "Rate Coefficient for the Reactions of. CCl3 Radicals with Ozone."Int. T. Chem. Kinet.. 35. 310-316 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Kato, et al.: "Preferential Formation of Neutral C10 upon Laser Vaporized Graphite in He Gas as Studied by Photoion.ization Mass Spectroscopy with 10. 5 J. Chern. Phys. Photons"J. Chern. Phys.. 118(2). 5390-5394 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.lnomata: "Laser-Induced Fluorescence of the CHXCFO(X=F、C1)Radicals"J.Chem.Phys.. 116. 6961-6972 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] R.Volkamer: "OH-Initiated Oxidation of Benzene.Part I.Phenol Formation under Atmospheric Conditions"Phys.Chem.Chem.Phys.. 4. 1598-1610 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] B.Klotz: "OH-Initiated Oxidation of Benzene.Part II.Influence of elevated NO_X Concentrations"Phys.Chem.Chem.Phys.. 4. 4399-4411 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Imamura: "Rate Coefficient for the Reactions of CCl_3 Radicals with Ozone"Int.J.Chem.Kinet. 35. 310-316 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Kato: "Preferential Formation of Neutral C_10 upon Laser Vaporized Graphite in He Gas as Studied by Photoionization Mass Spectroscopy with 10.5 eV Photons"J.Chem.Phys.. 118(12). 5390-5394 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Fushitani: "Generation of Infrared Radiation by Stimulated Raman Scattering in Para-Hydrogen Crystal at 5K"Opt.Lett.. 28(1). 37-39 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 秋元肇, 河村公隆, 中沢高清, 鷲田伸明編: "対流圏大気の化学と地球環境"学生出版センター. 223 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Inomata: "Laser-induced fluorescence of the CHClCHO radical and reaction of oxygen atoms with halogenated ethylenes"J. Phys. Chem. A. 105・32. 7559-7568 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Imamura 他1名: "Rate constants for the reactions of HCCCO and NCCO radicals with molecular oxygen"Int. J. Chem. Kinet.. 33・7. 440-448 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Inomata 他3名: "Laser induced fluorescence of the CHXCFO Radicals"J. Chem. Phys.. 116. 6961-6972 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] B.Klotz 他: "OH-Initiated Oxidation of Benzene"Phys. Chem. Chem. Phys.. 4. 1598-1610 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] B.Klotz 他: "OH-Initiated Oxidation of Benzene Part II"Phys. Chem. Chem. Phys.. 4. 4339-4411 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 秋元, 鷲田 他: "対流圏大気の化学と地球環境"学会出版センター. 250 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Inomata 他6名: "Laser-induced fluorescence of the CHCICHO radical and reation of oxygen atoms with halogenated ethylenes"J. Phys. Chem. A. 105・32. 7559-7568 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Imamura 他1名: "Rate constants for the reactions of HCCCO and NCCO radicals with molecular oxygen"Int. J. Chem. Kinet.. 33・7. 440-448 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] R.Zils 他4名: "Determination of the equilibrium constant and thermodynamic parameters for the reaction of pentadienyl radicals with O-2"J. Phys. Chem. A. 105・8. 1277-1282 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Oguchi 他4名: "Kinetic study on reactions of 1-and 2-methylvinoxy radicals with O-2"J. Phys. Chem. A. 105・2. 378-382 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 鷲田伸明: "対流圏化学におけるO2ラジカルの重要性の再提案"環境保全. 16. 46-54 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Inomata 他3名: "Laser-induced fluorescence of the CHXCFO(X=F, Cl) radicals"J. Chem. Phys.. 116・16. 00-00 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 秋元, 鷲田 他: "対流圏大気の化学と地球環境"学会出版センター. 250 (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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