Unsymmetrical phthalocyanines with alkynyl substituents

Kalkan A., KOCA A., Bayir Z.

POLYHEDRON, vol.23, no.18, pp.3155-3162, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 18
  • Publication Date: 2004
  • Doi Number: 10.1016/j.poly.2004.09.021
  • Journal Name: POLYHEDRON
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3155-3162
  • Istanbul Technical University Affiliated: Yes


The synthesis of unsymmetrically substituted metallophthalocyanines (M = Zn, Ni, Co) bearing two phenylethyl moieties and six alkythio substituents was achieved by co-cyclotetramerization of two different phthalonitrile derivatives, namely 4,5-di(hexyl-thio)phthalonitrile and 4,5-di(phenylethynyl)phthalonitrile in the presence of zinc, cobalt or nickel salts. In contrast to the totally alkyne substituted phthalocyanines, these partially alkyne-containing derivatives are more soluble and their Q band absorptions are red-shifted when compared with all alkylthio phthalocyanines. Electrochemical properties of the phthalocyanines were studied by cyclic voltammetry. (C) 2004 Elsevier Ltd. All rights reserved.