Hydrogen bond interactions in liquid and supercritical hydrofluorocarbons

被引：11

作者：

Abbott, AP ^{[1
]}

Corr, S ^{[1
]}

Durling, NE ^{[1
]}

Hope, EG ^{[1
]}

机构：

[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 38期

关键词：

D O I：

10.1021/jp034763v

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：

Determination of solvent-solute interactions is key to the understanding of solvent properties in liquid and supercritical fluids. The Kamlet-Taft parameters were determined for difluoromethane (HFC 32) and 1, 1, 1, 2-tetrafluoroethane (HFC 134a) as a function of temperature and pressure in the range 40-130 degreesC and 50-220 bar using three solvatochromic dyes. It is shown that both solvents exhibit considerable hydrogen bond donating and accepting properties, and these parameters also obey the three region density model often invoked when describing the dipolarity/polarizability parameter in supercritical fluids.

引用

页码：10628 / 10633

页数：6

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