Structure mesogens

Marcos, M., Ros, M.B., Serrano, J.L., Sola, M.A., Oro, L.A. and Barbera, J. (1990) Liquid-crystal behavior in ionic complexes of silver(I) molecular structure-mesogenic activity relationship. Chemistry of Materials, 2, 748-758. 

Chemical Formula Chemical Structure Mesogenic Index Group Contribution... 

Polymer ref. no. Structure Mesogenic Index Nature of melt... 

Lee, C.-H. Yamamoto, T. Synthesis of liquid crystals with bent-rod structure Mesogenic thiazole derivatives with long alkoxyl chains. Mol. Cryst. Liq. Cryst. 2001, 363, 77-84. 

In the case of liquid crystals in particular, vibrational properties reflect very directly the complex hierarchy of the structure and bonding problem in these materials. For example, in a single mesogenic molecule vibrational frequencies range from about 10 cm to over 3000 cm which arise from the very wide range of force constants present [79]. 

The interaction of complex liquid crystal molecules with realistic surfaces is an area which is currently unexplored using electronic structure methods though, as stated earlier, the problem of surface-induced control of molecular orientation remains at the forefront of liquid crystal device technology. This problem is currently at the limits of practical capability of the most powerful computer systems. However treatment of a single mesogenic molecule on a... 

The implementation of this formalism for an atomistic model does not present any difficulties, at least conceptually. However, it is not obvious how the formalism should be used for single site potentials such as the Gay-Berne model. One approach would be to superimpose a mesogenic structure on the Gay-Berne ellipsoid but this structure would necessarily have a lower symmetry. Alternatively it would be possible to place a line of atoms along... 

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