高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (8): 906.

• 研究简报 • 上一篇    下一篇

O(3p)原子与丙醛和正丁醛化学反应动力学研究

陈从香, 张健翔, 戴静华, 俞书勤   

  1. 中国科学技术大学近代化学系
  • 收稿日期:1988-09-14 出版日期:1990-08-24 发布日期:1990-08-24
  • 通讯作者: 陈从香
  • 基金资助:

    国家自然科学基金

The Kinetic Study of Reactions of O(3p) with Propionaldehyde and Butyraldehyde

Chen Congxiang, Zhang Jianxiang, Dai Jinghua, Yu Shuqin   

  1. Department of Modern Chemistry, University of Science and Technology of China, Hefei
  • Received:1988-09-14 Online:1990-08-24 Published:1990-08-24

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摘要： 我们已对O(3p)原子和酮类分子化学反应速率常数进行了系列测定[1],分析讨论了羰基对O(3p)抽提氢原子反应速率的影响,关于O(3p)与醛类分子反应速率的测定也有报道。本文用流动微波放电-化学发光光子计数方法测定O(3p)原子与丙醛和正丁醛化学反应速率常数及其与温度的关系,并由动力学数据对醛基中C—H键的离解能进行了讨论。

关键词: O(3p)原子, 醛, 动力学

Abstract: The determinations of the rate constants of reactions of O(3p) atoms with propionaldehydeand butyraldehyde by discharge flow-chemiluminescence are presented. The results measured are asfellows: k=(9.0±0.4)×10-12·e(-994±17)/T (for propionaldehyde+O(3p))and k=(1.7±0.2)×10-11·e(-987±39)/T (for butyraldehyde + O(3p))The dissociation energies of C-Hbond of aldehydic group are derived from the kinetic results.

Key words: O(3p) Atom, Aldehyde, Kinetics

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