2H NMR spectroscopy of liquid crystals:: structure and orientational order of a chiral smectogen in its A, C* and J* phases

被引:35
作者
Catalano, D [1 ]
Cavazza, M [1 ]
Chiezzi, L [1 ]
Geppi, M [1 ]
Veracini, CA [1 ]
机构
[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy
关键词
D O I
10.1080/026782900202462
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
H-2 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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页码:621 / 627
页数:7
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