Rate constants for the reactions of OH radicals with CH3OCF2CF3, CH3OCF2CF2CF3, and CH3OCF(CF3)2

被引：0

作者：

Tokuhashi, K

Takahashi, A

Kaise, M

Kondo, S

Sekiya, A

Yamashita, S

Ito, H

机构：

[1] Natl Inst Mat & Chem Res, Dept Phys Chem, Tsukuba, Ibaraki 3058565, Japan

[2] Res Inst Innovat Technol Earth, Bunkyo Ku, Tokyo 1130033, Japan

来源：

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS | 1999年 / 31卷 / 12期

关键词：

D O I：

10.1002/(SICI)1097-4601(1999)31:12<846::AID-KIN2>3.0.CO;2-4

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 CH3OCF2CF3, CH3OCF2CF2CF3, and CH3OCF(CF3)(2) have been measured over the temperature range 250-430 K. Kinetic measurements have been carried out using the flash photolysis, laser photolysis, and discharge flow methods combined respectively with the laser induced fluorescence technique. The influence of impurities in the samples was investigated by using gas-chromatography. The following Arrhenius expressions were determined: k(CH3OCF2CF3) = (190(-0.61)(+0.90)) X 10(-12) exp[- (1510 +/- 120)/T], k(CH3OCF2CF2CF3) = (2.06(-0.45)(+0.58)) X 10(-12) exp[-(1540 +/- 80)/T], and k(CH3OCF(CF3)(2)) = (1.94(-0.3)(+0.48)) X 10(-12) exp[-(1450 +/- 70)/T] cm(3) molecule(-1) s(-1). (C) 1999 John Wiley & Sons, inc.

引用

页码：846 / 853

页数：8

共 13 条

[1] A STRUCTURE-ACTIVITY RELATIONSHIP FOR THE ESTIMATION OF RATE CONSTANTS FOR THE GAS-PHASE REACTIONS OF OH RADICALS WITH ORGANIC-COMPOUNDS [J].