Liquid-Crystalline Polymorphism of Symmetrical Azobananas: bis (4-(4-alkylphenyl) azophenyl) 2-nitroisophtalates

…, K Nowicka, J Hofmann, Z Galewski

Index: Zygadlo; Dardas; Nowicka; Hofmann; Galewski Molecular Crystals and Liquid Crystals, 2009 , vol. 509, # 1 p. 283 - 291

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Citation Number: 8

Abstract

In this paper we present a series of novel compounds, bis (4-(4-alkylphenyl) azophenyl) 2- nitroisophtalates, which exhibit nematic and banana-type liquid-crystalline phases. The alkyl chain length varies from 1 to 18 carbons. The first ten members of this series exhibit nematic phase. The last eleven compounds exhibit banana-type liquid crystalline phases. The propyl and pentyl derivatives have extra second type of banana mesophase.

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