A Liquid Crystalline Oligomer Exhibiting Nematic and Twist-Bend Nematic Mesophases

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
Richard J Mandle, John W Goodby

Abstract

The twist-bend nematic phase (NTB ) has been described as the structural link between the untilted uniaxial nematic phase (N) and the helical chiral nematic phase (N*). The NTB phase exhibits phenomena of fundamental importance to science, that is, 1) the spontaneous formation of a helical pitch on the nanometer scale in a fluid and 2) the spontaneous breaking of mirror symmetry, leading to the emergence of chiral domains in an achiral system. In this Communication, we present a study on T49 [bis(4-(9-(4-((4-cyanobenzoyl)oxy)phenyl)nonyl)phenyl) 4,4'-(nonane-1,9-diyl)dibenzoate], a liquid-crystalline oligomer exhibiting the twist-bend nematic phase, which has a molecular length that is of comparable dimensions to the sub-10 nm pitch determined for CB9CB, and provide new insights into the differentiation between the nano- and macro-science for self-assembling supermolecular systems.

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Citations

Nov 15, 2016·Chemical Communications : Chem Comm·Mohamed AlaasarCarsten Tschierske
Oct 6, 2016·Chemistry : a European Journal·Richard J Mandle, John W Goodby
Nov 8, 2016·Scientific Reports·Richard J MandleJohn W Goodby
Mar 23, 2017·Angewandte Chemie·Keiki KishikawaTatsuo Taniguchi
Apr 18, 2018·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Richard J Mandle
Feb 28, 2018·Soft Matter·Warren D StevensonGoran Ungar
Apr 20, 2018·Angewandte Chemie·Richard J Mandle, John W Goodby
Jun 7, 2019·Physical Chemistry Chemical Physics : PCCP·Zeinab ParsouziSamuel Sprunt
Mar 14, 2019·Physical Chemistry Chemical Physics : PCCP·Richard J Mandle, John W Goodby
May 16, 2019·Proceedings of the National Academy of Sciences of the United States of America·Michael R TuchbandNoel A Clark
Oct 19, 2017·Scientific Reports·Richard J MandleJohn W Goodby
Jan 28, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Emily E PocockJohn W Goodby

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