OH yields from the CH3CO+O2 reaction using an internal standard

被引：38

作者：

Carr, Scott A. ^{[1
]}

Baeza-Romero, M. Teresa ^{[1
]}

Blitz, Mark A. ^{[1
]}

Pilling, Michael J. ^{[1
]}

Heard, Dwayne E. ^{[1
]}

Seakins, Paul W. ^{[1
]}

机构：

[1] Univ Leeds, Sch Earth Environm, Leeds LS2 9JT, W Yorkshire, England

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 445卷 / 4-6期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.1016/j.cplett.2007.07.099

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：

Laser flash photolysis of CH3C(O)OH at 248 nm was used to create equal zero time yields of CH3CO and OH. The absolute OH yield from the CH3CO + O-2 (+M) reaction was determined by following the OH temporal profile using the zero time OH concentration as an internal standard. The OH yield from CH3CO + O-2 (+M) was observed to decrease with increasing pressure with an extrapolated zero pressure yield close to unity (1.1 +/- 0.2, quoted uncertainties correspond to 95% confidence limits). The results are in quantitative agreement with those obtained from 248 nm acetone photolysis in the presence of O-2. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：108 / 112

页数：5

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