Temperature dependence and deuterium kinetic isotope effects in the HCO(DCO)+O2 reaction between 296 and 673 K

被引：26
|
作者：
DeSain, JD [1 ]
Jusinski, LE [1 ]
Ho, AD [1 ]
Taatjes, CA [1 ]
机构：
[1] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA
来源：
CHEMICAL PHYSICS LETTERS | 2001年 / 347卷 / 1-3期
关键词：
D O I：
10.1016/S0009-2614(01)01016-8
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 reactions HCO (DCO) + O-2 have been measured by the laser photolysis/CW laser-induced fluorescence (LIF) method from 296 to 673 K, probing the (B-2 A ' - X-2 A ') HCO (DCO) system. The HCO (DCO) + O-2 rate coefficients are 5.63 +/- 0.31 and 5.61 +/- 0.23 x 10(-12) cm(3) molecule(-1) s(-1), respectively, at 296 K; both are nearly independent of temperature between 296 and 673 K. The observed deuterium kinetic isotope effect is within the error estimate of previous measurements but is significantly smaller than recent theoretical predictions. (C) 2001 Published by Elsevier Science B.V.
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页码：79 / 86
页数：8
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