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

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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 macroscience
for self-assembling supermolecular systems.
Original languageEnglish
Pages (from-to)1-4
Number of pages4
Issue number7
Early online date25 Jan 2016
Publication statusPublished - 4 Apr 2016

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