MOLECULAR MODELING OF INTRAMOLECULAR HYDROGEN-BONDING IN SIMPLE OLIGOAMIDES .1. INVACUO

被引:12
作者
SMITH, DA
VIJAYAKUMAR, S
机构
[1] Department of Chemistry, The University of Toledo, Toledo
关键词
D O I
10.1016/S0040-4039(00)79788-7
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Molecular modeling studies of amides 1-4 suggest that, in vacuo, maximization of intramolecular hydrogen bonding in 1 is enthalpically preferred. Entropic considerations are not sufficient to overcome this preference. While 4 does prefer hydrogen bonded conformations, it is not a good model for 1. These results are in disagreement with the interpretation of recent experimental data. Possible reasons for this disagreement are discussed.
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页码:3613 / 3616
页数:4
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