Kinetics of the gas-phase reactions of dibenzothiophene with OH radicals, NO3 radicals, and O3

被引：5
|
作者：
Kwok, ESC
Atkinson, R
Arey, J [1 ]
机构：
[1] Univ Calif Riverside, Statewide Air Pollut Res Ctr, Riverside, CA 92521 USA
[2] Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92521 USA
[3] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
来源：
POLYCYCLIC AROMATIC COMPOUNDS | 1999年 / 13卷 / 02期
关键词：
dibenzothiophene; hydroxyl radical; nitrate radical; ozone; atmospheric reactions; nitrodibenzothiophenes;
D O I：
10.1080/10406639908020562
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The kinetics of the gas-phase reactions of OH radicals, NO3 radicals and O-3 With dibenzothiophene have been studied at 297 +/- 2 K and atmospheric pressure of air. An upper limit to the rate constant for the O-3 reaction of <6 x 10(-19) cm(3) molecule(-1) s(-1) was obtained, and using a relative rate method a rate constant for the OH radical reaction of (8.1+/-2.6)x 10(-12) cm(3) molecule(-1) s(-1) was measured. The measured rate constant for the NO3 radical reaction increased with increasing NO2 concentration, with a rate constant at low NO2 concentrations representative of the ambient atmosphere of < 7 x 10(-14) cm(3) molecule(-1) s(-1) being measured. Nitrodibenzothiophenes were observed as minor products of the OH radical and NO3 radical reactions in the presence of NO2.
引用
收藏
页码：175 / 189
页数：15
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