A PROTON MAGNETIC RESONANCE STUDY OF AQUEOUS N-METHYLACETAMIDE SOLUTIONS

被引:15
作者
HINTON, JF
AMIS, ES
机构
[1] Department of Chemistry, University of Arkansas, Fayetteville
来源
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-FRANKFURT | 1968年 / 60卷 / 1-4期
关键词
D O I
10.1524/zpch.1968.60.1-6.159
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
The proton magnetic resonance of aqueous N-methylacetamide solutions has been studied as a function of the mole fraction of water and as a function of temperature. Shifts to lower applied fields with a decrease in temperature were observed for both the water and N—H proton resonances. An increase in water concentration was found to produce a high field shift in the N—H proton resonance indicative of a net hydrogen-bond structure breaking effect. The water proton resonance, however, was found to undergo a periodic shift with respect to water concentration. The NCH3 and CCH3 proton resonances were not significantly affected by temperature or concentration changes. © 1968, Walter de Gruyter. All rights reserved.
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页码:159 / &
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