Liquid-crystalline complexes of palladium(II) and platinum(II) with di- and tri-alkoxystilbazoles: ligand control of mesomorphism

被引:47
作者
Donnio, B [1 ]
Bruce, DW [1 ]
机构
[1] UNIV EXETER,DEPT CHEM,EXETER EX4 4QD,DEVON,ENGLAND
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1997年 / 16期
关键词
D O I
10.1039/a702756g
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Liquid-crystalline complexes of palladium and platinum are formed when the metals are complexed to stilbazoles (4-styrylpyridines) bearing either two or three alkoxy chains. The complexes, termed polycatenar, show smectic C mesophases for most 3,4-disubstituted ligands, while the use of trisubstituted ligands leads to complexes showing columnar organisation, demonstrating that the spatial organisation of the metals in the liquid-crystal mesophase can be rather readily controlled. Complexes of these di-and tri -substituted stilbazoles with a cis-dicarbonylchloroiridium(I) fragment were not liquid crystalline.
引用
收藏
页码:2745 / 2755
页数:11
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