Gas-phase reaction of chlorine atoms with acrylonitrile.: Temperature and pressure dependence

被引：7

作者：

Aranda, A ^{[1
]}

de Mera, YD ^{[1
]}

Rodríguez, D ^{[1
]}

Rodríguez, A ^{[1
]}

Cabañas, B ^{[1
]}

Martínez, E ^{[1
]}

机构：

[1] Univ Castilla La Mancha, Fac Ciencias Quim, E-13071 Ciudad Real, Spain

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 377卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(03)01182-5

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 and mechanism of the reaction of chlorine atoms with acrylonitrile (CH2CHCN) (1) have been studied by the mass spectrometric discharge-flow method in the temperature range (260-333) K and at a total pressure between 0.5 and 3 Tort. At 1.0 Torr the following Arrhenius expression for the rate constant has been obtained from the kinetics of Cl radical consumption in excess of CH2CHCN: k(1) = (5.2 +/- 1.6) x 10(-14) exp[(1400 +/- 100/T)] cm(3) molecule(-1) s(-1). The reaction is found to proceed through an addition mechanism involving a relatively stable adduct. The atmospheric significance of the present results for acrylonitrile is also discussed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：571 / 576

页数：6

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