RATE CONSTANTS FOR THE GAS-PHASE REACTIONS OF OZONE WITH UNSATURATED ALIPHATIC-ALCOHOLS

被引:64
作者
GROSJEAN, E
GROSJEAN, D
机构
[1] Dga, Inc., Ventura, California, 93003, 4526 Telephone Road
关键词
D O I
10.1002/kin.550261206
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 ozone with unsaturated alcohols in air has been investigated at atmospheric pressure and ambient temperature (288-291 K). Cyclohexane was added tb scavenge the hydroxyl radical which forms as a product of the ozone-unsaturated alcohol reaction. The reaction rate constants, in units of 10(-18) cm(3) molecule(-1) s(-1), are 16.2 +/- 0.7 for (+/-) 3-buten-2-ol, 17.9 +/- 1.8 for 1-penten-3-ol, 10.0 +/- 0.3 for 2-methyl-3-buten-2-ol, 169 +/- 25 for cis-2 penten-1-ol, and 251 +/- 41 for 2-buten-1-ol (mixture of isomers). Substituent effects on reactivity are discussed. The reactivity of unsaturated alcohols towards ozone is similar to that of their alkene structural homologues. Implications of these results with respect to the atmospheric persistence of unsaturated alcohols are briefly discussed. (C) 1994 John Wiley & Sons, Inc.
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页码:1185 / 1191
页数:7
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