Enthalpy and entropy in ring closure reactions

被引:36
作者
Lightstone, FC [1 ]
Bruice, TC [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Chem, Santa Barbara, CA 93106 USA
基金
美国国家卫生研究院;
关键词
D O I
10.1006/bioo.1998.1096
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The strain and entropy effects of the lactone formation from omega-bromoalkane-carboxylate ions in ring sizes 3 to 23 is reevaluated. We find that Delta H double dagger is the largest contributor to the observed rates (Delta G double dagger) for ring sizes 3 to 6, while -T Delta S double dagger has little influence, -T Delta S double dagger has more effect on the observed rates for ring sizes 8 and larger. (C) 1998 Academic Press.
引用
收藏
页码:193 / 199
页数:7
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