A thermotropic biaxial nematic liquid crystal

Chandrasekhar, S. ; Ratna, B. R. ; Sadashiva, B. K. ; Raja, V. N. (1988) A thermotropic biaxial nematic liquid crystal Molecular Crystals and Liquid Crystals, 165 . pp. 123-130. ISSN 1058-725X

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Related URL: http://dx.doi.org/10.1080/00268948808082198


Optical studies have been carried out on a nematogenic copper complex, which incorporates the features of both rod-like and disk-like molecules. Conoscopic figures are presented demonstrating (i) the occurrence of a biaxial nematic phase in the pure complex, (ii) the uniaxial-biaxial (Na-Nb) transition in binary mixtures, and (iii) the temperature variation of the biaxiality near this transition. The I-Na-Nb phase diagram has been studied for the binary system.

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