Kinetics of reactions of CN with chlorinated methanes

被引：5

作者：

Samant, Vaishali ^{[1
]}

Hershberger, John F. ^{[1
]}

机构：

[1] N Dakota State Univ, Dept Chem & Mol Biol, Fargo, ND 58105 USA

来源：

CHEMICAL PHYSICS LETTERS | 2008年 / 460卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2008.06.014

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 kinetics of reactions of CN with the chlorinated methanes CH(3)Cl, CH(2)Cl(2), CHCl(3) and CCl(4) were investigated over the temperature range 298-573 K, using laser induced fluorescence (LIF) spectroscopy. At 298 K, rate constants of 9.0 +/- 0.3 x 10(13), 8.8 +/- 0.4 x 10(13), 9.0 +/- 0.5 x 10(13) and 4.3 +/- 0.6 x 10(13) cm3 molecule (1) s(1) were measured, respectively. A small positive temperature dependence was observed, as well as kinetic isotope effects of k(H)/k(D) similar to 2.14-2.25. These data along with product detection experiments strongly suggest that hydrogen abstraction dominates these reactions. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：64 / 67

页数：4

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