A new strategy towards the synthesis of a room-temperature discotic nematic liquid crystal employing triphenylene and pentaalkynylbenzene units

A new approach is reported for the design of a room-temperature discotic nematic (N ) liquid crystal (LC) dimer consisting of a triphenylene and a pentaalkynylbenzene unit linked via flexible alkyl spacers. The formation of the N phase is realized most likely through folding of the dimeric molecule...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2017, Vol.53 (21), p.3014-3017
Main Authors: Gupta, Monika, Gupta, Santosh Prasad, Rasna, M V, Adhikari, Debashis, Dhara, Surajit, Pal, Santanu Kumar
Format: Article
Language:English
Subjects:
Dimers
Liquid crystals
Mesophase
Nematic crystals
Spacers
Stacking
Strategy
X rays
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Summary:A new approach is reported for the design of a room-temperature discotic nematic (N ) liquid crystal (LC) dimer consisting of a triphenylene and a pentaalkynylbenzene unit linked via flexible alkyl spacers. The formation of the N phase is realized most likely through folding of the dimeric molecule that prevent stacking between the triphenylene units, as suggested by modelling in the mesophase derived from X-ray scattering results and high-level DFT calculations.
ISSN:1359-7345
1364-548X
DOI:10.1039/c6cc09509g