Direct kinetic studies of the reactions of 2-butoxy radicals with NO and O2

被引:28
作者
Deng, W [1 ]
Wang, CJ [1 ]
Katz, DR [1 ]
Gawinski, GR [1 ]
Davis, AJ [1 ]
Dibble, TS [1 ]
机构
[1] SUNY Syracuse, Coll Environm Sci & Forestry, Dept Chem, Syracuse, NY 13210 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0009-2614(00)01136-2
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
This Letter reports the, first kinetic study of 2-butoxy radicals to employ direct monitoring of the radical. The reactions of 2-butoxy with Oz and NO are investigated using laser-induced fluorescence (LIF). The Arrhenius expressions for the reactions of 2-butoxy with NO (k(1)) and O-2 (k(2)) in the temperature range 223-311 K have been determined to be k(1) = (7.50 +/- 1.69) x 10(-12) x exp((2.98 +/- 0.47) kJ mol(-1)/RT) cm(3) molecule(-1) s(-1) and k(2) = (1.33 +/- 0.43) x 10(-15) x exp((5.48 +/- 0.69) kJ mol(-1)/RT) cm(3) molecule(-1) s(-1). No pressure dependence was found for the rate constants of the reaction of 2-butoxy with NO at 223 K between 50 and 175 Torr. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:541 / 546
页数:6
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