PRESSURE AND TEMPERATURE-DEPENDENCE OF THE C2H3O+NO2 REACTION

被引：31

作者：

BARNHARD, KI ^{[1
]}

SANTIAGO, A ^{[1
]}

MIN, H ^{[1
]}

ASMAR, F ^{[1
]}

WEINER, BR ^{[1
]}

机构：

[1] UNIV PUERTO RICO,DEPT CHEM,RIO PIEDRAS,PR 00931

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 178卷 / 2-3期

关键词：

D O I：

10.1016/0009-2614(91)87049-H

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 temperature (295-374 K) and pressure (2.5-100 Torr) dependences for the rate constant of the C2H3O+NO2 reaction have been measured by laser flash photolysis/laser-induced fluorescence kinetic spectroscopy. The temperature-dependent reaction for the decay of C2H3O in the presence of NO2 is characterized over the measured region by the rate expression k(II) = (1.48 +/- 0.70) x 10(-11) exp (80.7 +/- 23.4 K/T) cm3 molecule-1 s-1. This rate expression is found to be independent of pressure. The results can be explained by a reaction mechanism involving the formation of an energized adduct which subsequently decomposes to products, most likely ketene and nitrous acid.

引用

页码：150 / 156

页数：7

共 32 条

[1] INFRARED SPECTRA OF KETENE AND DEUTEROKETENES [J].