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

与次要成分之间的大气反应相关的精确自由基动力学。

基本信息

  • 批准号:
    13440180
  • 负责人:
  • 金额:
    $ 9.6万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2001
  • 资助国家:
    日本
  • 起止时间:
    2001 至 2003
  • 项目状态:
    已结题

项目摘要

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.
同位素对化学过程的速率和产物的影响的研究长期以来一直有助于增加化学家对化学反应的详细性质的理解。化学家们一直在研究同位素效应,而其他科学家则一直在利用这些测量来帮助他们解释对自然系统(如古气候学)同位素组成的观察。海洋环流、大气化学转化机制、火成岩地温测量和太阳系演化历史。在此背景下,本文研究了几种精确测量化学反应速率常数的方法,以及如何测量分子同位素之间速率常数的微小差异。进行了以下研究。(1)将光电离质谱仪的灵敏度提高到100倍。(2)测定了甲基自由基与氧反应速率的同位素效应。(2)测定了甲基自由基与氧反应速率的同位素效应。(3)测定了含硫自由基与R02自由基反应的速率常数。

项目成果

期刊论文数量(62)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
S.Inomata: "Laser-Induced Fluorescence of the CHXCFO(X=F, Cl) Radicals."J.Chem.Phys.. 116. 6961-6972 (2002)
S.Inomata:“CHXCFO(X=F, Cl) 自由基的激光诱导荧光。”J.Chem.Phys.. 116. 6961-6972 (2002)
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B.Klotz, et al.: "OH-Initiated 0xidation of Benzene. Part II. Influence of elevated N0X Concentrations."Phys. Chem. Chem. Phys.. 4. 4399-4411 (2002)
B.Klotz 等人:“OH 引发的苯氧化。第二部分。NOX 浓度升高的影响。”Phys。
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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)
S. Inomata等6人:“CHClCHO自由基的激光诱导荧光以及氧原子与卤化乙烯的反应”J. Phys. A. 7559-7568 (2001)
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    0
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R.Volkamer, ct al.: "OH-Initiated Oxidation of Benzene. Part I. Phenol Formation under Atmospheric Conditions."Phys. Chem. Chem. Phys.. 4. 1598-1610 (2002)
R.Volkamer 等人:“OH 引发的苯氧化。第一部分。大气条件下苯酚的形成。”Phys。
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    0
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T.imatnura, et al.: "Rate Coefficient for the Reactions of. CCl3 Radicals with Ozone."Int. T. Chem. Kinet.. 35. 310-316 (2003)
T.imatnura 等人:“CCl3 自由基与臭氧反应的速率系数”。
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WASHIDA Nobuaki其他文献

WASHIDA Nobuaki的其他文献

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{{ truncateString('WASHIDA Nobuaki', 18)}}的其他基金

Kinetic isotope effects (KIEs) in the free radical reactions-application to the atmospheric chemistry
自由基反应中的动力学同位素效应(KIE)——在大气化学中的应用
  • 批准号:
    10640505
  • 财政年份:
    1998
  • 资助金额:
    $ 9.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Free Radical Processes in the Atmosphere
大气中的自由基过程
  • 批准号:
    05237106
  • 财政年份:
    1993
  • 资助金额:
    $ 9.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas

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