A NEW STRUCTURAL TYPE OF LIQUID-CRYSTAL - CRYSTAL-STRUCTURES AND THERMOTROPIC MESOPHASES OF DIHYDROXYTETRAALKYLDISILOXANES - COLUMNAR PHASES WITH HYDROGEN-BONDED ASSEMBLIES

被引:15
作者
POLISHCHUK, AP
TIMOFEEVA, TV
MAKAROVA, NN
ANTIPIN, MY
STRUCHKOV, YT
机构
[1] ACAD SCI USSR,INST ORGANOELEMENT CPDS,VANILOV STR 28,MOSCOW 117813,USSR
[2] ACAD SCI UKSSR,INST PHYS,KIEV 252650 28,UKRAINE,USSR
关键词
D O I
10.1080/02678299108045576
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Previous structural investigations of mesogenic organosilicon compounds (1,3-dihydroxytetraalkyldisiloxanes, [R2(OH)Si]2O, R = C(n)H2n+1) which form thermotropic phases are outlined. The crystal and molecular structure determination of a non-mesogenic member of this series [Me2(OH)Si]2O is described. It is inferred that the mesophases formed by this family of compounds belong to a new structural type with columnar stacks of the molecules laced together with hydrogen bonds.
引用
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页码:433 / 439
页数:7
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