INFRARED STUDIES ON CRESOL-UREA, M-CRESOL-UREA AND P-CRESOL-UREA (1-1) COMPLEXES

被引：5
作者：
DOBROWOLSKI, JC
机构：
[1] Industrial Chemistry Research Institute Department of Applied Spectroscopy 8, 01-793 Warsaw, Rydygiera-Street
来源：
JOURNAL OF MOLECULAR STRUCTURE | 1990年 / 219卷
关键词：
D O I：
10.1016/0022-2860(90)80061-N
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：
Complex formation between urea and o-, m- and p-cresol in 1,2-dichloroethane solutions was investigated by i.r. spectroscopy. Analogical 1:1 urea-phenol complex was reevaluated. Those complexes are formed by CO⋯H hydrogen bonding. In solution the NH urea groups do not play any significant role. The i.r. temperature studies allowed us to determine the enthalpy and entropy of formation of 1:1 complex. © 1990.
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页码：233 / 238
页数：6
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