PERTURBATIONS, INHIBITION, AND PROMOTION OF ULTRAVIOLET SURFACE PHOTOCHEMISTRY - CH3BR ON BR/NI(111)

被引:104
作者
MARSH, EP
TABARES, FL
SCHNEIDER, MR
GILTON, TL
MEIER, W
COWIN, JP
机构
[1] Chemistry Department, University of California, Santa Barbara
[2] Junta de Energia Nuclear, Madrid
[3] D.F.V.L.R., Stuttgart
关键词
D O I
10.1063/1.458033
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 inhibition and perturbations of surface photochemistry, due to the coupling of the excited state to the surface, are discussed as it pertains to CH3 Br adsorbed on nickel. Photofragmentation of CH3Br was observed on a brominated Ni(111) surface, with the fragmentation process being strongly perturbed at low coverages. The perturbations are attributed to charge transfer processes. Direct photofragmentation was observed as well as a surface specific dissociative electron attachment channel. Cross section values are reported for fragmentation at 193 and 248 nm. © 1990 American Institute of Physics.
引用
收藏
页码:2004 / 2014
页数:11
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