Kinetics of the reaction of chlorine atoms with isoprene (2-methyl 1,3-butadiene, CH2=C(CH3)CH=CH2) at 297 ± 2 K

被引：12

作者：

Xing, Jia-Hua ^{[1
]}

Takahashi, Kenshi ^{[1
]}

Hurley, Michael D. ^{[2
]}

Wallington, Timothy J. ^{[2
]}

机构：

[1] Kyoto Univ, Pioneering Res Unit, Uji 6110011, Japan

[2] Ford Motor Co, Phys & Environm Sci Dept, Dearborn, MI 48121 USA

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 472卷 / 1-3期

关键词：

GAS-PHASE REACTIONS; CL-ATOMS; RATE COEFFICIENTS; HYDROCARBONS; CH3C(O)O-2; MECHANISM; PRESSURE; RADICALS; SERIES; HO2;

D O I：

10.1016/j.cplett.2009.03.002

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 gas-phase reaction of chlorine atoms with isoprene was studied in 1-20 Torr of N-2 or Ar diluents using pulsed laser photolysis/vacuum UV laser-induced fluorescence and in 1-700 Torr of N-2 diluent using smog chamber relative rate techniques. There was no discernable effect of total pressure or nature of the diluent gas indicating that even in 1 Torr of argon diluent the reaction is near its high pressure limit. A value of k(CI + isoprene) = (3.44 +/- 0.32) x 10 (10) cm(3) molecule (1) s (1) was derived and is recommended for use in atmospheric models. The molar HCI yield in 700 Torr of N-2 diluent was 12.6 +/- 3.0%. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：39 / 43

页数：5

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