DEUTERIUM-ISOTOPE EFFECT ON THE ORIENTATION DEPENDENCE OF CN(B) RADICAL FORMATION IN THE REACTION OF AR(3P) WITH CD3CN

被引:16
作者
CHE, DC [1 ]
KASAI, T [1 ]
OHOYAMA, H [1 ]
OHASHI, K [1 ]
FUKAWA, T [1 ]
KUWATA, K [1 ]
机构
[1] OSAKA UNIV,FAC SCI,DEPT CHEM,TOYONAKA,OSAKA 560,JAPAN
关键词
D O I
10.1021/j100174a026
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 orientation dependence of CN(B) radical formation in the reaction of the Ar(3P) atoms with oriented CD3CN molecules by use of a hexapole electrostatic field was studied, and the dissimilar orientation anisotropy as compared with that for the reaction with the oriented CH3CN molecules was found. This difference in stereoanisotropy suggests that the CN(B) formation has at least two reaction processes. These processes are relevant to anisotropic and isotropic molecular orbitals of acetonitrile at the stage of energy transfer from the Ar(3P) atoms. The emission spectra of the CN(B) radicals for both reactions with randomly oriented acetonitrile were observed to investigate the relationship between the vibrational excitation of the CN(B) radical and branching either to CN(B) formation or to hydrogen atomization.
引用
收藏
页码:8159 / 8162
页数:4
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