Dissociative electron attachment to CCl4: Lifetime of the CCl4-* intermediate

被引:48
作者
Popple, RA [1 ]
Finch, CD [1 ]
Smith, KA [1 ]
Dunning, FB [1 ]
机构
[1] RICE UNIV,RICE QUANTUM INST,HOUSTON,TX 77005
关键词
D O I
10.1063/1.471597
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
Dissociative electron attachment to CCl4 is studied by measuring the angular and velocity distribution of Cl- ions produced in collisions with velocity selected K(np) Rydberg atoms. Analysis of the data using a Monte Carlo collision code that models the detailed kinematics of the reaction indicates that the lifetime of the CCl4-* intermediate initially formed by Rydberg electron capture is 7.5+/-2.5 ps and that, upon dissociation, only a small. fraction of the excess energy of reaction appears as translational energy of the Cl- and CCl3 fragments. (C) 1996 American Institute of Physics.
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页码:8485 / 8489
页数:5
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