TRIMERIC AND TETRAMERIC LIQUID-CRYSTALLINE THIADIAZOLE DERIVATIVES

被引：36

作者：

ZAB, R ^{[1
]}

JOACHIMI, D ^{[1
]}

AGERT, O ^{[1
]}

NEUMANN, B ^{[1
]}

TSCHIERSKE, C ^{[1
]}

机构：

[1] UNIV HALLE WITTENBERG,INST ORGAN CHEM,D-06015 HALLE,GERMANY

来源：

LIQUID CRYSTALS | 1995年 / 18卷 / 03期

关键词：

D O I：

10.1080/02678299508036649

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel liquid crystalline 2-phenyl-1,3,4-thiadiazole based oligomers with three and four rigid aromatic units linked by a flexible central unit have been investigated by polarizing microscopy. The synthesis of these compounds and the influence of structural variations on the mesomorphic properties are described. The combination of suitable mesogenic moieties with appropriate central units leads to oligomers which exhibit S-C phases.

引用

页码：489 / 494

页数：6

共 12 条

[1] LIQUID-CRYSTALLINE PHOSPHAZENES - HIGH POLYMERIC AND CYCLIC TRIMERIC SYSTEMS WITH AROMATIC AZO SIDE GROUPS [J].

ALLCOCK, HR ;

KIM, C .

MACROMOLECULES, 1989, 22 (06) :2596-2602

[2]

ALLEN CFH, 1955, ORG SYNTH, V3, P140

[3] LIQUID-CRYSTALLINE CYCLIC TRIMERS DERIVED FROM BENZENE-1,3,5-TRICARBOXYLIC ACID [J].

ATTARD, GS ;

DOUGLASS, AG ;

IMRIE, CT ;

TAYLOR, L .

LIQUID CRYSTALS, 1992, 11 (05) :779-784

[4]

BACH V, 1992, 21 FREIB ARB TAG FLU, pP40

[5]

DEBELDER AN, 1965, ADV CARBOHYD CHEM, V20, P19

[6] LIQUID-CRYSTALLINE BEHAVIOR OF MOLECULES WITH TETRAHEDRAL SYMMETRY [J].

EIDENSCHINK, R ;

KREUZER, FH ;

DEJEU, WH .

LIQUID CRYSTALS, 1990, 8 (06) :879-884

[7]

Furniss B. S., 1989, VOGELS TXB PRACTICAL, P395

[8]

HOUGH L, 1952, J CHEM SOC, V2, P1525

[9] THE USE OF DIETHYL AZODICARBOXYLATE AND TRIPHENYLPHOSPHINE IN SYNTHESIS AND TRANSFORMATION OF NATURAL-PRODUCTS [J].

MITSUNOBU, O .

SYNTHESIS-STUTTGART, 1981, (01) :1-28

[10]

Schmidt O., 1963, METHODS CARBOHYDRATE, V2

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