Revisiting angular jump models of molecular reorientations in viscous liquids

被引：22

作者：

Diezemann, G ^{[1
]}

Sillescu, H ^{[1
]}

机构：

[1] Univ Mainz, Inst Phys Chem, D-55099 Mainz, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 111卷 / 03期

关键词：

D O I：

10.1063/1.479196

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 generalize the frequently used model of isotropic reorientational Brownian motion via small but finite angular steps to the case in which molecular reorientations by different angles take place around arbitrary axes. A simple approximation allows to give analytical expressions for experimentally relevant correlation functions, including spin lattice relaxation rates. We compare the results of our model to earlier treatments of rotational Brownian motion. (C) 1999 American Institute of Physics. [S0021-9606(99)50227-4].

引用

页码：1126 / 1136

页数：11

共 36 条

[21]

Ivanov E. N., 1973, Optics and Spectroscopy, V35, P169

[22]

IVANOV EN, 1964, ZH EKSP TEOR FIZ, V18, P1041

[23]

KAC M, 1950, P 2 BERK S MATH STAT, P189

[24] Dynamics of the rotational degrees of freedom in a supercooled liquid of diatomic molecules [J].