Synthesis and mesomorphic properties of fluorinated liquid crystals obtained from optically active 2-fluoro-octanol

被引:33
作者
Liu, H [1 ]
Nohira, H [1 ]
机构
[1] SAITAMA UNIV,FAC ENGN,DEPT APPL CHEM,URAWA,SAITAMA 338,JAPAN
关键词
D O I
10.1080/02678299608031146
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Several homologues of semi-fluorinated liquid crystals, 4'-[(n-perfluoroalkyl)alkyloxylphenyl 4-(2-fluoro-octyloxy)benzoates and 4'-(2-fluoro-octyloxy)phenyl 4-[(n-perfluoroalkyl)alkyloxy]benzoates have been synthesized. One set of the compounds, with the central carbonyl group conjugated to the terminal position carrying the non-chiral perfluoroalkyloxy tail, showed enhanced chiral smectic C behaviour, while the other set, with the central carbonyl group conjugated to the terminal position carrying the chiral 2-fluoro-octyloxy tail, exhibited enhanced smectic A behaviour. The mesomorphic properties of these novel fluorinated materials are reported and the effects of extent of fluorination are discussed.
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页码:581 / 586
页数:6
相关论文
共 18 条
[1]  
[Anonymous], 1975, J PHYS
[3]   SUBMICROSECOND BISTABLE ELECTRO-OPTIC SWITCHING IN LIQUID-CRYSTALS [J].
CLARK, NA ;
LAGERWALL, ST .
APPLIED PHYSICS LETTERS, 1980, 36 (11) :899-901
[4]  
GOODBY JW, FERROELECTRIC LIQUID, P409
[5]   EFFECT OF MOLECULAR-STRUCTURE ON MESOMORPHISM .8. NEW SERIES OF TRIFLUOROMETHYL LIQUID-CRYSTALS [J].
GRIFFIN, AC ;
BUCKLEY, NW .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1978, 41 (06) :141-144
[6]  
Hassner A, 1978, TETRAHEDRON LETT, V46, P4475
[7]  
Ivashcherko A. V., 1981, MOL CRYST LIQ CRYST, V67, P235
[8]  
JANULIS EP, 1988, FERROELECTRICS, V85, P375
[9]  
Koden M., 1989, Molecular Crystals and Liquid Crystals Letters Section, V6, P185
[10]  
MISAKI S, 1981, MOL CRYST LIQ CRYST, V66, P123