Fluoro Substitution in Thermotropic Liquid Crystals

被引：82

作者：

Hird, Michael ^{[1
]}

Toyne, Kenneth J. ^{[1
]}

机构：

[1] Univ Hull, Dept Chem, Kingston Upon Hull HU6 7RX, N Humberside, England

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1998年 / 323卷

关键词：

Fluoro substitution; liquid crystals; lateral substitution; structure-property relationships; review;

D O I：

10.1080/10587259808048432

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Fluoro substitution in thermotropic liquid crystals provides a general way of modifying the properties of a parent system. Melting point, transition temperatures, mesophase types and other physical properties are affected by fluoro substitution so that frequently the behaviour of the parent compound can be manipulated and improved in a predictable manner. This review discusses the effects of fluoro substitution at different positions in a variety of core systems and briefly considers the problems arising in the synthesis of fluoro-substituted liquid crystals.

引用

页码：1 / 67

页数：67

共 178 条

[61] FERROELECTRIC MIXTURES AND THEIR PHYSICOCHEMICAL PROPERTIES
GEELHAAR, T
[J]. FERROELECTRICS, 1988, 85 : 717 - 737
[62] METHODS OF FLUORINATION IN ORGANIC-CHEMISTRY
GERSTENBERGER, MRC
HAAS, A
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1981, 20 (08): : 647 - 667
[63] A NOVEL, EFFICIENT AND GENERAL SYNTHETIC ROUTE TO UNSYMMETRICAL TRIPHENYLENE MESOGENS USING PALLADIUM-CATALYZED CROSS-COUPLING REACTIONS
GOODBY, JW
HIRD, M
TOYNE, KJ
WATSON, T
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (14) : 1701 - 1702
[64] 5-bromo-2-iodopyrimidine: A novel, useful intermediate in selective palladium-catalysed cross-coupling reactions for efficient convergent syntheses
Goodby, JW
Hird, M
Lewis, RA
Toyne, KJ
[J]. CHEMICAL COMMUNICATIONS, 1996, (24) : 2719 - 2720
[65] FLUORINATED LIQUID-CRYSTALS FOR ACTIVE MATRIX DISPLAYS
GOTO, Y
OGAWA, T
SAWADA, S
SUGIMORI, S
[J]. MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 209 : 1 - 7
[66] MESOMORPHIC PROPERTIES OF SOME LATERALLY FLUORINATED 4-ALKYL,4''-OXOALKYL 1,1'/4',1''TERPHENYLS
GOULDING, MJ
GREENFIELD, S
[J]. LIQUID CRYSTALS, 1993, 13 (03) : 345 - 351
[67] LATERAL FLUORO SUBSTITUTED 4-ALKYL-4''-CHLORO-1,1'/4',1''-TERPHENYLS AND DERIVATIVES - USEFUL HIGH-BIREFRINGENCE, HIGH-STABILITY LIQUID-CRYSTALS
GOULDING, MJ
GREENFIELD, S
COATES, D
CLEMITSON, R
[J]. LIQUID CRYSTALS, 1993, 14 (05) : 1397 - 1408
[68] Some Developments in the Synthesis of Liquid Crystal Materials
Gray, G. W.
Hird, M.
Toyne, K. J.
[J]. MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 204 : 91 - 110
[69] The Synthesis of Several Lateral Difluoro-substituted 4,4 ''-Dialkyl- and 4,4 ''-Alkoxyalkyl-Terphenyls and a Rationalisation of the Effect of Such Substitution on Mesophase Type and Transition Temperatures?
Gray, G. W.
Hird, M.
Toyne, K. J.
[J]. MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 204 : 43 - 64
[70] WIDE-RANGE NEMATIC MIXTURES INCORPORATING "4''-N-ALKYL-4-CYANO-PARA-TERPHENYLS
GRAY, GW
HARRISON, KJ
NASH, JA
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1974, (11) : 431 - 432

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