COMPETITIVE UNIMOLECULAR DECOMPOSITION IN CHEMICALLY ACTIVATED RADICAL SYSTEMS - PROPYL RUPTURE

被引:22
作者
LARSON, CW
TARDY, DC
RABINOVITCH, BS
机构
[1] Department of Chemistry, University of Washington, Seattle, WA
[2] Department of Chemistry, University of Toronto, Toronto, Ont.
关键词
D O I
10.1063/1.1669824
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 study of the competitive unimolecular decomposition of chemically activated alkyl radicals is extended to cases of rupture of a propyl fragment vs a methyl or ethyl fragment. A study of the decomposition at room temperature of the octyl-4, heptyl-3, and 3-methyl-hexyl-2 radicals, formed by addition of H atoms to trans-octene-4, trans-heptene-3, and 3-methylhexene-1, is reported. The value of D0° (n-Pr-H) is deduced to be within -0.8 kcal of the value of D0° (Et-H). Comparison of the results are made with values obtained on a theoretical model for the absolute and relative rates; good agreement was found.
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页码:299 / +
页数:1
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