PROTON-TRANSFER IN THE SOLID-STATE - THERMODYNAMIC PARAMETERS FROM AN X-RAY STUDY IN THE TEMPERATURE-RANGE 20-293 K

被引：32

作者：

DESTRO, R ^{[1
]}

机构：

[1] CNR,I-20133 MILAN,ITALY

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 181卷 / 2-3期

关键词：

D O I：

10.1016/0009-2614(91)90359-H

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：

From single-crystal X-ray diffraction data measured at 293, 240, 147 and 20 K, values of DELTA-H = 1.6 +/- 0.6 kcal mol-1 and DELTA-S = 4.5 +/- 2.2 cal mol-1 K-1 are obtained for the tautomeric equilibrium between the p-quinonemethide and the o-quinone forms of citrinin. A correlation between bond lengths and equilibrium composition at different temperatures is presented.

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页码：232 / 236

页数：5

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