INFRARED MULTIPHOTON DISSOCIATION OF ACROLEIN - TIME-RESOLVED OBSERVATION OF CO (UPSILON=1) IR EMISSION AT 4.7 MU-M

被引：7

作者：

CHOWDHURY, PK

RAO, KVSR

MITTAL, JP

机构：

[1] Chemistry Division, Bhabha Atomic Research Centre, Bombay

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 218卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(93)E1455-P

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：

In contrast to the photochemistry of electronically excited acrolein producing vinyl and formyl radicals via C-C bond rupture, multiphoton vibrationally excited molecules undergo concerted dissociation generating CO and ethylene. Vibrational excitation in the CO product is detected immediately following the CO, laser pulse by observing IR emission at 4.7 mu m. The decay of the IR emission was studied as a function of acrolein pressure. A vibrational-vibrational relaxation rate constant of CO (nu = 1) by acrolein is found to be 1240 +/- 200 Torr(-1) s(-1).

引用

页码：60 / 66

页数：7

共 25 条

[1] INFRARED MULTIPHOTON EXCITATION DYNAMICS OF CF3I .1. POPULATIONS AND DISSOCIATION RATES OF HIGHLY EXCITED ROVIBRATIONAL STATES [J].