Enforced liquid crystalline properties of dibenzo [a, c] phenazine dimer and self assembly

…, HC Yang, MY Chiang, Z Kai, J Wu, CW Ong

Index: Tzeng, Mei-Chun; Liao, Su-Chih; Chang, Tsu-Hsin; Yang, Shih-Chi; Weng, Min-Wei; Yang, Hsiao-Ching; Chiang, Michael Y.; Kai, Zhang; Wu, Jishan; Ong, Chi Wi Journal of Materials Chemistry, 2011 , vol. 21, # 6 p. 1704 - 1712

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Citation Number: 14

Abstract

Dibenzo [a, c] phenazine dimers with the following features:(i) short spacer,(ii) peripheral chains shorter and longer than the spacers, and (iii) reduced symmetrical structure of the disc were synthesized. The dibenzo [a, c] phenazine disc has enforced the self-assembly of discotic dimers connected through six methylene spacers to form mesophases through a folded conformation in the mesophase. An X-ray diffraction study pinpoints the preferential ...