A modified route to unsymmetrically substituted triphenylenes, new functionalised derivatives and twins, and the smallest reported triphenylene mesogen

Cammidge, Andrew N., Turner, Rebecca J., Beskeni, Rhoda D. and Almutairi, Tahani (2017) A modified route to unsymmetrically substituted triphenylenes, new functionalised derivatives and twins, and the smallest reported triphenylene mesogen. Liquid Crystals, 44 (12-13). pp. 2018-2028. ISSN 0267-8292

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Abstract

We report the unexpected observation of columnar mesophase formation in a simple 2,7-dibromotetramethoxytriphenylene – by far the most lightly substituted discotic mesogen in this class. This derivative was prepared alongside the 3,6-dibromotriphenylene isomer to demonstrate an alternative, modified synthetic strategy that permits late-stage interchange of alkyl chain substituents. The new method is employed alongside the original route to deliver several new materials, including a conjugated ferrocene-triphenylene-ferrocene triad, a BODIPY-triphenylene-BODIPY triad and a new nematic twin linked through imine bridges.

Item Type: Article
Uncontrolled Keywords: john goodby,triphenylenes,discotics,synthesis,functionalisation
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Pure Connector
Date Deposited: 27 Jun 2017 05:07
Last Modified: 17 Mar 2020 23:33
URI: https://ueaeprints.uea.ac.uk/id/eprint/63890
DOI: 10.1080/02678292.2017.1346210

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