A SEARCH FOR THE LASER-INDUCED FLUORESCENCE OF THE FCO(X2A') RADICAL

被引：10

作者：

HANCOCK, G

HEARD, DE

机构：

[1] Physical Chemistry Laboratory, Oxford University, Oxford, OX1 3QZ, South Parks Road

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1991年 / 60卷 / 03期

关键词：

D O I：

10.1016/1010-6030(91)90028-R

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：

A search was made for the laser-induced fluorescence (LIF) spectrum of the FCO radical produced in the reaction sequence. O + CF2 --> FCO + F O + FCO --> CO2 + F In the wavelength regions 278-282 and 288.5-294nm copious LIF from vibrationally excited CF2(X approximately 1A1) was observed, and was seen to be considerably quenched on addition of CO2. No additional LIF features were seen in regions in which FCO is known to absorb. Arguments are presented for this being due to the low quantum yield of fluorescence from FCO, and a lower limit of 294 nm is suggested for the onset of predissociation in the radical.

引用

页码：265 / 270

页数：6

共 14 条

[11]

Ryan K. R., 1984, Plasma Chemistry and Plasma Processing, V4, P271, DOI 10.1007/BF00568981

[12] ENERGY PARTITIONING IN COLLISION-FREE MULTI-PHOTON DISSOCIATION OF MOLECULES - ENERGY OF X CF2 FROM CF2HCL, CF2BR2, AND CF2CL2 [J].