Structure-mesophase relationships in dialdehyde and related complexes of copper(II) and oxovanadium(IV)

Copper(II) and oxovanadium(IV) complexes of a new series of α-substituted β-dialdehydes have been synthesised, and their mesophase properties studied. Bis(4-alkyloxyphenylmalonaldehyde)copper and bis(4-alkylphenylmalonaldehyde)copper complexes show a narrow (10 °C) nematic phase below their cleaning...

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Bibliographic Details
Published in:Inorganica Chimica Acta 1995-03, Vol.231 (1), p.187-190
Main Authors: Blake, Antony B., Chipperfield, John R., Clark, Stephen
Format: Article
Language:English
Subjects:
Copper complexes
Dialdehyde complexes
Liquid crystal complex
Metallomesogen
Oxovanadium complexes
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Summary:Copper(II) and oxovanadium(IV) complexes of a new series of α-substituted β-dialdehydes have been synthesised, and their mesophase properties studied. Bis(4-alkyloxyphenylmalonaldehyde)copper and bis(4-alkylphenylmalonaldehyde)copper complexes show a narrow (10 °C) nematic phase below their cleaning temperatures. The oxovanadium(IV) complex of a ligand generally has a lower melting point than its copper analogue, but often does not show the liquid crystal phase shown by the copper analogue. Introduction of a single methyl group in place of an aldehyde proton is sufficient to destroy liquid crystal properties.
ISSN:0020-1693
1873-3255
DOI:10.1016/0020-1693(94)04348-Y