A STUDY OF HYDROGEN-BONDING IN CONCENTRATED DIOL WATER SOLUTIONS BY PROTON NMR - CORRELATIONS WITH GLASS-FORMATION

被引：15

作者：

FORSYTH, M ^{[1
]}

MACFARLANE, DR ^{[1
]}

机构：

[1] MONASH UNIV,DEPT CHEM,CLAYTON,VIC 3168,AUSTRALIA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 17期

关键词：

D O I：

10.1021/j100380a064

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：

Solute/water interactions in a series of diol solutions have been investigated by 1H NMR. Strong hydrogen bonding between water and alcohols that are more basic than water is thought to result in lower chemical shifts of water protons compared to the case of pure water. This is attributed to a greater degree of covalent character in the hydrogen bonding between water and the more basic diols. The inductive effect of the methyl group and longer chain alkyls is observed to increase basicity in ethylene glycol, propylene glycol, and 2,3-butanediol solutions. A correlation between the glass-forming ability of the diol solutions and the stronger hydrogen-bonding solutes (i.e., stronger bases) is developed, with 2,3-butanediol best promoting glass formation at the lowest concentrations. © 1990 American Chemical Society.

引用

页码：6889 / 6893

页数：5

共 24 条

[1] SOLVATION SPECTRA .28. NMR STUDIES OF AQUEOUS TERTIARY BUTYL ALCOHOL IN PRESENCE AND ABSENCE OF VARIOUS SOLUTES [J].