Kinetics Of C2H radical reactions with ethene, propene and 1-butene measured in a pulsed Laval nozzle apparatus at T-103 and 296 K

被引：58

作者：

Vakhtin, AB

Heard, DE

Smith, IWM

Leone, SR ^{[1
]}

机构：

[1] Univ Colorado, Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA

[2] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 348卷 / 1-2期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/S0009-2614(01)00975-7

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：

Low-temperature kinetics of the reactions of C2H radical with ethene (k(1)), propene (k(1)), and 1-butene (k(3)) are studied using a pulsed Laval nozzle supersonic expansion. The C2H decay profiles in the presence of both the alkene reactant and O-2 are monitored by the CH(A(2) Delta) chemiluminescence tracer method. The rate constants k(1), k(2), and k(3) are measured at T = 103 K to be (1.4 +/- 0.4) x 10(-10), (2.4 +/- 0.6) x 10(-10), and (2.6 +/- 0.6) x 10(10) cm(3) molecule(-1) s(-1), respectively. Measurements at room temperature (296 K) and previous data suggest a slight negative temperature dependence for all three reactions. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：21 / 26

页数：6

共 24 条

[21] Kinetics of reactions of C2H radical with acetylene, O2, methylacetylene, and allene in a pulsed Laval nozzle apparatus at T=103 K [J].