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Original Articles

Paramagnetic liquid-crystalline complexes based on novel enaminoketone ligands

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Pages 797-802 | Received 11 Nov 1991, Accepted 11 Jan 1992, Published online: 24 Sep 2006
 

Abstract

Calamitic ligands having aminopropenone-3 ring substituted with alkyl-trans-cyclohexyl-phenyl and alkyl groups are low melting nematogens. Copper(II) complexed to the ligands gives thermally stable rod-like liquid crystals which exhibit an enantiotropic paramagnetic nematic phase. It is shown that modifications of the terminal groups as well as synthesis of asymmetric complexes enables us to extend the nematic range and depress the melting points.

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