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Design of Low-molar Mass Thermomesogens in the Search for Biaxial Nematic Liquid Crystals

 

作者: K. Praefcke,   D. Blunk,   D. Singer,   J.W. Goodby,   K.J. Toyne,   M. Hird,   P. Styring,   W.D. J. A. Norbert,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 1998）
卷期: Volume 323, issue 1  

页码: 231-259

 

ISSN:1058-725X

 

年代: 1998

 

DOI:10.1080/10587259808048444

 

出版商: Taylor & Francis Group

 

关键词: Biaxial nematics;liquid crystals;geometrical factors;metal complexes;metallome-sogens;multifunctional compounds;radial multifaces;synthetic routes

 

数据来源: Taylor

 

摘要:

In this article we describe research into the molecular design features for potential thermotropic biaxial nematogens of low-molar mass. We discuss how we can systematically change the shape of molecular structures in view of this aim of our work. The optical biaxialities of the materials prepared were tested through conoscopic and birefringence measurements. So far none of these materials synthesised and tested in this way have unequivocally exhibited the biaxial nematic phase. An overview of numerous further materials different in molecular shape and in part studied by others is also given.

 

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