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1-((12-Bromododecyl)oxy)-4-((4-(4-pentylcyclohexyl)phenyl)ethynyl) benzene: Liquid crystal with aggregation-induced emission characteristics |
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| Authors: | YaFei Chen JieSheng Lin WangZhang Yuan ZhenQiang Yu Jacky WingYip Lam Ben Zhong Tang |
| Institution: | 1. Shenzhen Key Laboratory of Functional Polymers, School of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, 518060, China 2. National Institutes for Food and Drug Control, Beijing, 100050, China 3. School of Chemistry and Chemical engineering, Shanghai Jiao Tong University, Shanghai, 200240, China 4. Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China |
| Abstract: | The luminescent liquid crystals (LLCs) are expected to solve the conflicts between the aggregation caused quenching and the requirement of aggregation or self-organization for LCs. Herein, we developed a new strategy of applying aggregation-induced emission (AIE) phenomenon to the molecular design of LCs towards LLCs. In this report, a calamitic liquid crystal based on tolane with AIE characteristics was successfully synthesized and the chemical structure was characterized by 1H, 13C NMR, and matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) high-resolution mass spectra. The fluorescence behavior was studied by fluorescence spectroscopy and the liquid crystal phase behaviors were investigated by differential scanning calorimetry (DSC), polarized optical microscopy (POM). The crystal structure was obtained by X-ray diffraction crystallography with P1 space group. Results demonstrated that the sample was AIE active and the LC phases sequence during cooling was nematic, smectic C and smectic B phase. |
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