Issue 7, 2012
From the journal:

RSC Advances

Columnar mesophases of luminescent polycatenar liquid crystals incorporating a 1,3-substituted benzene ring interconnecting two 1,3,4-oxadiazoles†

Jianchuan Tang,a   Rong Huang,a   Hongfei Gao,a   Xiaohong Cheng,*a   Marko Prehmbc  and  Carsten Tschierske*b  

* Corresponding authors

a Department of Chemistry, Yunnan University, Kunming, Yunnan, P. R. China
E-mail: xhcheng@ynu.edu.cn

b Organic Chemistry, Institute of Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes-Strasse 2, Halle, Germany
E-mail: carsten.tschierske@chemie.uni-halle.de

c Physical Chemistry, Institute of Chemistry, Martin-Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle, Germany

Abstract

New polycatenar liquid crystals containing two 1,3,4-oxadiazole rings interconnected by a bent 1,3-substituted benzene ring as the central linking unit and three alkoxy chains at each terminal have been synthesized and investigated by polarizing microscopy, DSC, XRD scattering, UV-vis spectroscopy and photoluminescence measurements. All compounds form enantiotropic hexagonal columnar phases and have broader mesophase ranges than the corresponding para substituted analogues and show strong blue fluorescence emission with a large Stokes shift in solution.

Graphical abstract: Columnar mesophases of luminescent polycatenar liquid crystals incorporating a 1,3-substituted benzene ring interconnecting two 1,3,4-oxadiazoles

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Article information

DOI
https://doi.org/10.1039/C2RA01362B
Article type
Paper
Submitted
27 Dec 2011
Accepted
04 Jan 2012
First published
06 Jan 2012

RSC Adv., 2012,2, 2842-2847

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Columnar mesophases of luminescent polycatenar liquid crystals incorporating a 1,3-substituted benzene ring interconnecting two 1,3,4-oxadiazoles

J. Tang, R. Huang, H. Gao, X. Cheng, M. Prehm and C. Tschierske, RSC Adv., 2012, 2, 2842 DOI: 10.1039/C2RA01362B

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