TEMPERATURE-DEPENDENT CH3OCL FORMATION IN THE REACTION BETWEEN CH3O2 AND CLO

被引：43

作者：

HELLEIS, F ^{[1
]}

CROWLEY, J ^{[1
]}

MOORTGAT, G ^{[1
]}

机构：

[1] MAX PLANCK INST CHEM, DIV ATMOSPHER CHEM, POSTFACH 3060, D-55020 MAINZ, GERMANY

来源：

GEOPHYSICAL RESEARCH LETTERS | 1994年 / 21卷 / 17期

关键词：

D O I：

10.1029/94GL01280

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The reaction CH3O2 + ClO -> CH3OCl + O2 (2b) has been investigated at temperatures of 295, 255, 230 and 215 K. The temperature dependent branching ratio for CH3OCl formation (alpha2b) is given by alpha2b = (T/300)-1.65-0.223exp(411/T). The result at 200 K (ca 0.23) can be combined with our previous determination of the overall rate constant for the reaction between CH3O2 + ClO [Helleis et al, 1993] to calculate a channel specific rate constant for reaction 2b of ca (4.1 +/- 1) x 10(-13) cm3 molecule-1 s-1 at the temperatures prevalent in the lower polar stratosphere at springtime.

引用

页码：1795 / 1798

页数：4

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