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Synthesis and characterization of new H-shaped triphenylene discotic room-temperature liquid crystal tetramers by a copper-free click reaction

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Abstract

Herein, four new H-shaped triphenylene discotic liquid crystal tetramers have been designed and synthesized using a copper-free [3+2] cycloaddition reaction between the triphenylene dimer and diazide compounds. To probe the molecular self-assembly and mesophase properties, the length and rigid spacers in diazide have been tailored. The tetramers 7 with a soft spacer display a room-temperature enantiotropic DLC mesophase, and X-ray diffraction confirms that they exhibit an unusual mesophase of a lamellar–hexagonal columnar phase (Colhl). The results of the photophysical tests show that all the new H-shaped DLC tetramers display relatively high intensity photoluminescence properties.

Graphical abstract: Synthesis and characterization of new H-shaped triphenylene discotic room-temperature liquid crystal tetramers by a copper-free click reaction

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Publication details

The article was received on 24 Jul 2017, accepted on 15 Nov 2017 and first published on 15 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ02695A
Citation: New J. Chem., 2018, Advance Article
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    Synthesis and characterization of new H-shaped triphenylene discotic room-temperature liquid crystal tetramers by a copper-free click reaction

    K. Zhang, Y. Bai, C. Feng, G. Ning, H. Ni, W. Yu, K. Zhao, B. Wang and P. Hu, New J. Chem., 2018, Advance Article , DOI: 10.1039/C7NJ02695A

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