REACTIONS OF CCL3O2 WITH NO AND NO2 AND THE THERMAL-DECOMPOSITION OF CCL3O2NO2

被引：28

作者：

SIMONAITIS, R ^{[1
]}

HEICKLEN, J ^{[1
]}

机构：

[1] PENN STATE UNIV,IONOSPHERE RES LAB,UNIVERSITY PK,PA 16802

来源：

CHEMICAL PHYSICS LETTERS | 1979年 / 62卷 / 03期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(79)80744-7

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 reactions of CCl3O2 with NO and NO2 have been studied by steady-state photolysis of Cl2HCCl3O2N2NONO2 mixtures at ≈ 1 atm: CCl3O2 + NO → CCl3O + NO2 (3), CCl3O2NO2 (+ M) ⇌ CCl3O2NO2 (+ M) (4, -4); k4/k3 = 0.68, independent of temperature. The thermal decomposition of CCl3O2NO2 via the back reaction (-4) was studied from 268-298 K at 1 atm total pressure (mainly N2). The Arrhenius expression is k-4 = 3.7 × 1015 exp(-11 000/T)s-1, though both pre-exponential factor and activation energy may be somewhat larger in the high-pressure regime. CCl3O2NO2 should be produced in the stratosphere from reaction (4). In the stratosphere at 220 K, the thermal lifetime of CCl3O2NO2 will be > 16 days. © 1979.

引用

页码：473 / 478

页数：6

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