Synthesis and self-assembly of photoresponsive and luminescent polycatenar liquid crystals incorporating an azobenzene unit interconnecting two 1,3,4-thiadiazoles

Novel polycatenar liquid crystals containing two 1,3,4-thiadiazole rings interconnected by an azobenzene central linkage have been synthesized and investigated by polarizing microscopy, DSC, X-ray scattering, SEM, UV-vis spectroscopy and photoluminescence measurements. These compounds can self-assem...

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Bibliographic Details
Published in:New journal of chemistry 2017, Vol.41 (5), p.2004-2012
Main Authors: Peng, Xiongwei, Gao, Hongfei, Xiao, Yulong, Cheng, Huifang, Huang, Fanran, Cheng, Xiaohong
Format: Article
Language:English
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Summary:Novel polycatenar liquid crystals containing two 1,3,4-thiadiazole rings interconnected by an azobenzene central linkage have been synthesized and investigated by polarizing microscopy, DSC, X-ray scattering, SEM, UV-vis spectroscopy and photoluminescence measurements. These compounds can self-assemble into SmC, Col hex / p 6 mm and Cub I / Pm 3̄ n liquid crystalline phases in the bulk states and form multistimuli responsive organogels in organic solvents. They have reversible photoresponsive properties in solution, liquid crystalline states and gel states. They also show fluorescence emission with large Stokes shift in solution and binding selectivity to Cu 2+ among a series of cations in CH 3 CN–CH 2 Cl 2 solution.
ISSN:1144-0546
1369-9261
DOI:10.1039/C6NJ02604D