Mechanism of the OH-initiated oxidation of methacrolein

被引：78
|
作者：
Orlando, JJ [1 ]
Tyndall, GS
Paulson, SE
机构：
[1] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80303 USA
[2] Univ Calif Los Angeles, Dept Atmospher Sci, Los Angeles, CA 90095 USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 1999年 / 26卷 / 14期
关键词：
D O I：
10.1029/1999GL900453
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The OH-initiated oxidation of methacrolein, a major product of isoprene oxidation, has been studied in an environmental chamber using FT-IR spectroscopy. Products observed (which account for more than 90% of the reacted carbon) were CO, CO2 hydroxyacetone, formaldehyde, and methacryloylperoxynitrate (MPAN). It is determined that the attack of OH on methacrolein occurs 55% of the time via addition to the double bond, and 45% via abstraction of the aldehydic hydrogen atom, in agreement with a previous study. The end products of the abstraction channel are identified and quantified for the first time, and the mechanism of their production discussed.
引用
收藏
页码：2191 / 2194
页数：4
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