The temperature dependence of the rate constant for the reaction F+C2H6

被引：22
作者：
Persky, A [1 ]
机构：
[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
来源：
CHEMICAL PHYSICS LETTERS | 2003年 / 380卷 / 3-4期
关键词：
D O I：
10.1016/j.cplett.2003.08.100
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The temperature dependence of the rate constant for the reaction F + C2H6 has been determined by a competitive method using the F + CH4 reaction as a reference reaction. Ratios of rate constants k(F+C2H6)/k(F+CH4) were determined by a discharge-flow-mass spectrometric technique at four temperatures in the range 189-298 K. These ratios were combined with values of k(F+CH4) from an earlier study to obtain absolute values for k(F+C2H6). The Arrhenius expression calculated from the results is k(F+C2H6) = (1.95 +/- 0.25) x 10(-10) exp[-(180 +/- 70)/T] cm(3) molecule(-1) s(-1). The present results are compared with previous published results. (C) 2003 Elsevier B.V. All rights reserved.
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页码：286 / 291
页数：6
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