高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (3): 314.

• 研究简报 • 上一篇    下一篇

氧原子(3P)与环己酮反应速率常数研究

陈从香, 张健翔, 俞书勤   

  1. 中国科技大学近代化学系
  • 收稿日期:1987-09-15 出版日期:1989-03-24 发布日期:1989-03-24
  • 通讯作者: 陈从香
  • 基金资助:

    国家自然科学基金

The Measurement for the Rate Constant of the Reaction Between O(3p) Atoms and c-Hexanone Molecules

Chen Congxiang, Zhang Jianxiang, Yu Shuqin   

  1. Department of Modern Chemistry, University of Science and Technology of China, Hefei
  • Received:1987-09-15 Online:1989-03-24 Published:1989-03-24

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摘要： 碳氢化合物被NOx光氧化过程中会产生中间物质酮类化合物,与烷烃、烯烃不同的是,这类化合物与大气化学中感兴趣的自由基,如O、OH等的基元反应研究得不多。除有少量关于O(3p)与丙酮反应速率常数测定的报道外,前文还报道了O(3p)与丁酮反应速率常数的测定,并得出该反应速率常数与温度关系的Arrhenius表达式。

关键词: 动力学, O(3P)原子, 环己酮

Abstract: We measured the second order rate constants of the reaction between O(3P) atoms and c-hexanone molecules over the temperature range 313～513 Kwith discharge-chemiluminescence technique. The dependence of the rate constant on temperature determined isk=2.5±0.8×10-10exp( -20.2± 0.9 kT/RT) mL/molec·sO(3P) atoms were produced by discharge flow system. The concentration of the residual O(3P) atoms in detector was monitered by the NO2+chemilumine-scence. The preliminary estimation of the effect of the carbonyl group upon the rate constant of the reaction is presented.

Key words: Kinetics, O(3P) atom, c-Hexanonc

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