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Observation of a frustrated nematic phase in amphiphilic, disc-like complexes of gold(III) containing hydrocarbon and semiperfluorocarbon terminal chains

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JournalLIQUID CRYSTALS
DateAccepted/In press - 5 Oct 2021
DateE-pub ahead of print (current) - 5 Dec 2021
Early online date5/12/21
Original languageEnglish

Abstract

The mesomorphism is reported of a discotic complex of gold(III) that is amphiphilic on account of the presence of both hydrocarbon and fluorocarbon chains. The all-hydrocarbon analogue of the complex shows only a columnar hexagonal phase between the melting and clearing points, whereas this new, amphiphilic example shows a nematic phase between a columnar rectangular phase and a columnar hexagonal phase. The nature and formation of the nematic phase are discussed and it is proposed to be a columnar nematic formed as a result of frustration driven by the amphiphilic nature of the complex.

Bibliographical note

Funding Information:
We thank the University of York for funding (RRP and AJM), Johnson Matthey for generous loans of gold salts and Dr Stephen Cowling for recording some SAXS data.

Publisher Copyright:
© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

    Research areas

  • amphiphile, discotic, frustration, gold, Metallomesogen, nematic

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