Gas‐phase reactivity study of O(3P) atoms with trans‐CHClCHCl and CHClCCl2 at 298 K: Comparison to reactions with some other substituted ethenes
Gas‐phase reactivity study of O(3P) atoms with trans‐CHClCHCl and CHClCCl2 at 298 K: Comparison to reactions with some other substituted ethenes
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DOI：
10.1002/kin.1037
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发表时间：
2001-07
影响因子：
1.5
通讯作者：
M. Teruel;R. A. Taccone;S. I. Lane
中科院分区：
文献类型：
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作者：
M. Teruel;R. A. Taccone;S. I. Lane
用与化学发光检测系统耦合的放电流管测量了298K时反式二氯乙烯和三氯乙烯与O(3P)原子的气相反应的绝对速率系数。测得的速率常数分别为(2.2±0.4)×10−13和(1.4±0.2)×10−13cm3分子−1 S−1。实验是在[O(3P)]o≪[烯烃]o的准一级条件下进行的，并与O原子与其他氯乙烯以及不同亲电试剂(如OH和NO3)的反应结果进行了比较。考虑了影响双键加成速率的不同因素。与烯烃和甲基取代烯烃反应不同，这些反应的速率常数与实验电离势不是以简单的方式相关。©2001 John Wiley&Sons，Inc.Int J Chem Knet 33：415-421,2001
Absolute rate coefficients for the gas-phase reactions of trans-dichloroethene and trichloroethene with O(3P) atoms have been measured at 298 K using a discharge flow tube coupled to a chemiluminescence detection system. The observed rate constant values are (2.2 ± 0.4) × 10−13 and (1.4 ± 0.2) × 10−13 cm3 molecule−1 s−1, respectively. The experiments were carried out under pseudo-first-order conditions with [O(3P)]o ≪ [alkene]o. These results are compared to those of O atom reactions with other chloroethenes and with different electrophiles, such as OH and NO3. Different factors that affect the rate of addition to the double bond are considered. The rate constants for these reactions do not correlate in a simple manner with the experimental ionization potential, as is the case in the alkene and methyl-substituted alkene reactions. © 2001 John Wiley & Sons, Inc. Int J Chem Kinet 33: 415–421, 2001