CALCULATED ROTATORY PROPERTIES OF RANDOM-COIL POLY-L-ALANINE

被引:23
作者
TONELLI, AE
机构
[1] Bell Telephone Laboratories Inc., Murray Hill
关键词
D O I
10.1021/ma60012a014
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The rotatory properties of poly-L-alanine in the randomly coiled conformation are calculated from existing theories. The calculated rotational strengths of the various electronic transitions in the amide group are averaged over all conformations accessible to the random coil. Two different descriptions of the electronic structure of the amide group are employed, and the results they yield are compared with circular dichroism data from the literature. Both electronic descriptions of the amide group lead to semiquantitative agreement with experiment. However, it is not possible to render a definite judgment regarding the preferability of one description over the other. © 1969, American Chemical Society. All rights reserved.
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页码:635 / &
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