FTIR PRODUCT STUDY OF THE REACTION OF CH3OCH2O2+HO2

被引：74
|
作者：
WALLINGTON, TJ [1 ]
HURLEY, MD [1 ]
BALL, JC [1 ]
JENKIN, ME [1 ]
机构：
[1] UKAEA, CONSULTANCY SERV, HARWELL LAB, CHEM KINET SECT, DIDCOT OX11 0RA, OXON, ENGLAND
来源：
CHEMICAL PHYSICS LETTERS | 1993年 / 211卷 / 01期
关键词：
D O I：
10.1016/0009-2614(93)80049-U
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：
Fourier transform infrared spectroscopy was used to identify CH3OCHO and CH3OCH2OOH as products of the gas-phase reaction of CH3OCH2O2 radicals with HO2 radicals. At 700 Torr and 295 +/- 2 K, branching ratios of k1a/k1 = 0.53 +/- 0.08 and k1b/k1 = 0.40 +/- 0.04 were established. Quoted errors are 2 standard deviations together with our estimate of systematic uncertainties. (CH3OCH2O2+HO2-->CH3OCH2OOH+O2 (1a), CH3OCH2O2+HO2-->CH3OCHO+O2+ H2O (1b).) This result is discussed with respect to previous literature data and to computer models of atmospheric chemistry. As part of this work, the rate constants for the reaction of Cl atoms with CH3OCH2OOH and CH3OCHO were determined to be (6.1 +/- 0.3) x 10(-11) and (1.4 +/- 0.1) x 10(-12) cm3 molecule-1 s-1, respectively.
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收藏
页码：41 / 47
页数：7
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