Liquid crystals made of banana-shaped molecules

Madhusudana, N. V. (2005) Liquid crystals made of banana-shaped molecules Proceedings of the DAE Solid State Physics, 46 . pp. 977-981.

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Liquid crystals made of rod-like molecules are known for well over a century. The nematic phase with a purely 'orientational order of the rods and different types of layered arrangements which produce one-dimensionally periodic smectic phases are exhibited by compounds with rod-like molecules. Liquid crystals made of disc-like molecules were discovered just over 26 years ago and columnar phases with 2-dimensionally periodic structures are commonly found in such materials. Liquid crystals made of bent-core (BC) or banana-shaped molecules were discovered in 1996 and are now known to exhibit over a dozen different types of unique structures. We have found that by judiciously choosing compounds with rod-like and BC molecules, their binary mixtures exhibit several induced liquid crystalline phases, including a biaxial smectic A phase. The article gives an overview of the subject.

Item Type:Article
Source:Copyright of this article belongs to Allied Publishers Pvt. Ltd..
ID Code:76019
Deposited On:28 Dec 2011 13:23
Last Modified:28 Dec 2011 13:23

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