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Columnar Liquid Crystalline Corannulenes: Synthesis, Assembly and Charge‐Carrier Transport Properties

Columnar Liquid Crystalline Corannulenes: Synthesis, Assembly and Charge‐Carrier Transport... Two discotic liquid crystalline (LC) molecules consisting of a bowl‐shaped corannulene core and five‐fold photoactive azobenzene branches with different paraffinic side chains were developed. Their self‐assembly, photo‐responsive behavior and charge‐carrier transport properties were investigated in detail. A wider mesophase temperature range was achieved when utilizing longer and furcal flexible side chain substitution. 2D XRD measurements revealed the π‐packed corannulene‐centered 1b (i.e., with furcal side alkoxyl chains) exhibited helical columnar LC phase. This packing structure also led to a higher hole charge carrier mobility of 7.07 x 10–2 cm2·V–1·s–1 compared to that of the counterpart 1a with linear side chain substitutions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chinese Journal of Chemistry Wiley

Columnar Liquid Crystalline Corannulenes: Synthesis, Assembly and Charge‐Carrier Transport Properties

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References (18)

Publisher
Wiley
Copyright
© 2021 SIOC, CAS, Shanghai and Wiley‐VCH GmbH
ISSN
1001-604X
eISSN
1614-7065
DOI
10.1002/cjoc.202100183
Publisher site
See Article on Publisher Site

Abstract

Two discotic liquid crystalline (LC) molecules consisting of a bowl‐shaped corannulene core and five‐fold photoactive azobenzene branches with different paraffinic side chains were developed. Their self‐assembly, photo‐responsive behavior and charge‐carrier transport properties were investigated in detail. A wider mesophase temperature range was achieved when utilizing longer and furcal flexible side chain substitution. 2D XRD measurements revealed the π‐packed corannulene‐centered 1b (i.e., with furcal side alkoxyl chains) exhibited helical columnar LC phase. This packing structure also led to a higher hole charge carrier mobility of 7.07 x 10–2 cm2·V–1·s–1 compared to that of the counterpart 1a with linear side chain substitutions.

Journal

Chinese Journal of ChemistryWiley

Published: Sep 1, 2021

Keywords: ; ; ; ;

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