Issue 14, 1995

Synthesis and characterisation of some novel phthalocyanines containing both oligo(ethyleneoxy) and alkyl or alkoxy side-chains: novel unsymmetrical discotic mesogens

Abstract

The synthesis of unsymmetrical, peripherally octa-substituted phthalocyanines which contain a combination of 1,4,7,10-tetraoxaundecyl and hexadecyl or dodecyloxy side-chains is described. These compounds were prepared by mixed phthalonitrile cyclotetramisations or by the self-condensation of an unsymmetrical phthalonitrile containing both dodecyloxy and 1,4,7,10-tetraoxaundecyl groups. Separation of phthalocyanine products was achieved by simple column chromatography. A number of isomeric phthalocyanines, separated as single compounds, are reported. All of the phthalocyanines possess thermotropic columnar liquid crystallinity and a brief summary of their mesogenic properties is given.

Article information

Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1995, 1817-1823

Synthesis and characterisation of some novel phthalocyanines containing both oligo(ethyleneoxy) and alkyl or alkoxy side-chains: novel unsymmetrical discotic mesogens

G. J. Clarkson, N. B. McKeown and K. E. Treacher, J. Chem. Soc., Perkin Trans. 1, 1995, 1817 DOI: 10.1039/P19950001817

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