Rate constants for the reactions of OH radicals with CF3OCF=CF2 and CF3CF=CF2

被引:38
|
作者
Tokuhashi, K
Takahashi, A
Kaise, M
Kondo, S
Sekiya, A
Fujimoto, E
机构
[1] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan
[2] Res Inst Innovat Technol Earth, Bunkyo Ku, Tokyo 1130033, Japan
关键词
D O I
10.1016/S0009-2614(00)00626-6
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 rate constants for the reactions of OH radicals with trifluoromethyl trifluorovinyl ether (CF3OCF = CF2) and hexafluoropropene (CF3CF = CF2) have been measured over the temperature range 250-430 K. Kinetic measurements have been carried out using the flash photolysis and laser photolysis methods combined, respectively, with the laser-induced fluorescence technique. The Arrhenius rate constants have been determined as k(CF3OCF=CF2)=1.01(-0.04)(+0.04) x 10(-12) exp[(320 +/- 10)/T], and k(CF3CF = CF2) = 8.74(-0.33)(+0.34) x 10(-13) exp[(260 +/- 10)/T] cm(3) molecule(-1) s(-1). (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:189 / 195
页数:7
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