Interactions and dynamics of mesogenic molecules in the vicinity of the isotropic to nematic phase transition

被引：12
作者：
Jadzyn, Jan [1 ]
Czechowski, Grzegorz [1 ]
机构：
[1] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2007年 / 844卷
关键词：
molecular structure; mesogenic molecules; liquid crystals; dielectric spectroscopy; intermolecular interactions; phase transitions;
D O I：
10.1016/j.molstruc.2007.03.034
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：
A role of the molecular structure and polarity in the dielectric behavior of nematogenic compounds in the vicinity of the isotropic to nematic phase transition is discussed. Temperature dependences of the static permittivity and its derivative, in relation to the basic thermodynamic quantities (internal energy, entropy and Helmholtz free energy), as well as an anomaly in the rotational diffusion of the mesogenic molecules and corresponding activation energy, are analyzed. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：59 / 63
页数：5
相关论文
共 25 条
123