Binding of hydrogen bonding solutes at liquid-vapour interfaces of molecular fluids

被引:18
|
作者
Paul, S [1 ]
Chandra, A [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
关键词
D O I
10.1016/j.cplett.2004.10.144
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
We have calculated the potential of mean force (PMF) for the transfer of a solute molecule across a liquid vapour interface for four different systems: (a) one methanol molecule in water, (b) one water molecule in methanol, (c) one acetonitrile molecule in water and (d) one water molecule in acetonitrile by means of constrained molecular dynamics simulations. A minimum of the PMF is found near the Gibbs dividing surface for methanol and acetonitrile solutes although the degree of surface activity is found to be somewhat different due, in part, to varying hydrogen bonding nature of these two solutes. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:515 / 519
页数:5
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