CHOLESTERIC METALLOMESOGENS CONTAINING OPTICALLY-ACTIVE METAL-TRICARBONY MOIETIES

Authors
HUANG D YANG J WAN W DING F ZHANG L LIU Y XIANG S
Citation
D. Huang et al., CHOLESTERIC METALLOMESOGENS CONTAINING OPTICALLY-ACTIVE METAL-TRICARBONY MOIETIES, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 281, 1996, pp. 43
Citations number
10
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
281
Year of publication
1996
Database
ISI
SICI code
1058-725X(1996)281:<43:CMCOM>2.0.ZU;2-O
Abstract
Diastereoisomers, iron tricarbonyl, cholesteryl sorbate 4, (+)-isomer and 5, (-)-isomer, have been synthesized and resolved by fractional cr ystallization. The stereostructures of the complexes were proposed by chemical method and CD spectra. DSC and polarized microscope revealed that 5 shows enantiotropic cholesteric phase. The two isomers possess same mesophase behaviors on cooling. Thermal racemization of 5 has bee n observed, but it is inhibited in some extent by the cholesteryl grou p. Chromium tricarbonyl cholesteryl (p-methyl) benzoate 8 shows simila r phase transition with 4.