2H NMR spectroscopy of liquid crystals: structure and orientational order of a chiral smectogen in its A,C* and J* phases |
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Authors: | D. Catalano M. Cavazza L. Chiezzi M. Geppi C. A. Veracini |
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Affiliation: | 1. Chemistry Department , Moscow State University , 119992 Moscow, Russia barmatov@genebee.msu.su;3. Chemistry Department , Moscow State University , 119992 Moscow, Russia |
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Abstract: | 2H NMR spectroscopy is employed to investigate the orientational order, molecular structure and phase transitions of the chiral smectic liquid crystal 1-methylheptyl 4'-(4-n-decyloxybenzoyloxy)biphenyl-4-carboxylate (10B1M7), showing smectic A, C* and J phases, as well as several sub-smectic C* phases. Two optically pure, differently deuteriated isotopomers have been purposely synthesized and studied. |
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Keywords: | vertical alignment cetyltrimethylammonium bromide reverse mode polymer dispersed liquid crystal surface energy liquid crystal |
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