Low molar mass thieno[3,2-b] and thieno[2,3-b]thiophenes in liquid crystal materials science: recent synthetic approaches

Abstract

2015): Low molar mass thieno[3,2-b] and thieno[2,3-b]thiophenes in liquid crystal materials science: recent synthetic approaches, Liquid Crystals To link to this article: http://dx.

Ethylenedioxythiophene as a novel central unit for bent-core liquid crystals

“…[19][20][21][22][23]. While a number of BC LC derived from simple thiophene central unit are known [5][6][7][8][9][10][11][12][13][14][15], extensive literature search reveals that any BC LC derived from EDOT has so far not been realised.…”

“…Incorporation of five-member heterocyclic compounds widens the bent angle and show extensive mesomorphic behaviour [4]. A number of 2,5-disubstituted thiophene-based liquid crystal compounds have been synthesised and investigated their structural properties [5][6][7][8][9][10][11][12][13][14][15]. The sulphur heteroatom containing central core can substantially enhance optical anisotropy, fast switching time, reduction in viscosity, elevation of a negative dielectric anisotropy and lowering melting points, which make them good candidates for technological importance [16][17][18].…”