Kinetic study of the Br+IO, I+BrO and Br+I-2 reactions. Heat of formation of the BrO radical

被引：48

作者：

Bedjanian, Y ^{[1
]}

LeBras, G ^{[1
]}

Poulet, G ^{[1
]}

机构：

[1] UNIV ORLEANS,F-45071 ORLEANS 2,FRANCE

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 266卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(97)01530-3

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：

Using the discharge-flow mass spectrometric method, the rate coefficients for the reactions Br + IO --> I + BrO (2), I + BrO --> Br + IO (3) and Br + I-2 --> I + IBr (4) have been measured at 298 K and 1 Torr: k(2) = (2.3 +/- 0.3) x 10(-11), k(3) = (1.45 +/- 0.20) X 10(-11) and k(4) = (1.20 +/- 0.15) X 10(-10) cm(3) molecule(-1) s(-1). The value of the enthalpy of BrO formation has been derived from the kinetic data obtained for reactions (2) and (3): Delta H-f,H-298(BrO) = 28.6 +/- 1.4 kcal mol(-1).

引用

页码：233 / 238

页数：6

共 23 条

[1] REACTION-KINETICS OF GROUND-STATE FLUORINE, F2P, ATOMS .2. REACTIONS FORMING INORGANIC FLUORIDES, STUDIED MASS SPECTROMETRICALLY [J].