Probing solute-solvent electrostatic interactions: Rotational diffusion studies of 9,10-disubstituted anthracenes

被引：52

作者：

Hartman, RS

Konitsky, WM

Waldeck, DH

Chang, YJ

Castner, EW

机构：

[1] UNIV PITTSBURGH,DEPT CHEM,PITTSBURGH,PA 15260

[2] BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973

来源：

JOURNAL OF CHEMICAL PHYSICS | 1997年 / 106卷 / 19期

关键词：

D O I：

10.1063/1.474119

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 rotational diffusion of 9,10-disubstituted anthracenes is studied in various solvents. By systematic variation of the anthracene functionalities the influence of the electrostatic properties of the solute on the solute-solvent frictional coupling is investigated. These studies explore the range of validity of continuum based dielectric friction models for describing the frictional coupling. It is found that a continuum model of the solvent with an extended charge distribution for the solute is adequate in unassociated solvents, but does not adequately describe the friction in the associated solvent, benzyl alcohol. (C) 1997 American Institute of Physics.

引用

页码：7920 / 7930

页数：11

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