THE FREQUENCY-DEPENDENT CONDUCTIVITY OF ELECTROLYTE-SOLUTIONS

被引:57
作者
CHANDRA, A
WEI, DQ
PATEY, GN
机构
[1] Department of Chemistry, University of British Columbia, Vancouver
[2] Centre de Recherche en Calcul Applique, Montreal, Que. H3X 2H9, 5160 boul. Decarie
关键词
D O I
10.1063/1.465274
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 frequency dependent conductivity, sigma(omega), of model electrolyte solutions is investigated employing molecular dynamics simulations. Approximate analytical theories are also derived and evaluated. It is found that sigma(omega) is generally not a simple function and that its detailed frequency dependence contains much useful information about the structure and dynamics of ionic solutions. By varying molecular and state parameters such as the dipole moment and moment of inertia of the solvent, the ionic charge, the solution density, etc., we are able to obtain a physical interpretation of the behavior of sigma(omega). For example, very interesting dynamical solvation effects as well as features associated with ion pairs are identified and described.
引用
收藏
页码:2083 / 2094
页数:12
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