Synthesis and spectral properties of novel seco-porphyrazines with eight 4-biphenyl groups

Gonca E., Baklaci U. G. , Dincer H. A.

POLYHEDRON, vol.27, no.11, pp.2431-2435, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 11
  • Publication Date: 2008
  • Doi Number: 10.1016/j.poly.2008.04.025
  • Title of Journal : POLYHEDRON
  • Page Numbers: pp.2431-2435


Magnesium porphyrazinate substituted with eight 4-biphenyl groups on the periphery positions has been synthesized for the first time from cyclotetramerization of 1,2-bis(4-biphenyl)maleonitrile in the presence of magnesium butanolate. Its demetalation by treatment with trifluoroacetic acid, resulted in a partially oxidized product, namely, octakis(4-biphenyl)-2-seco-porphyrazine-2,3-dione. Further reaction of this product with copper(II) acetate, zinc(11) acetate and cobalt(II) acetate has led to the metallo derivatives, [octakis(4-biphenyl)-2-seco-2,3-dioxoporphyrazinato] M(II) (M = Cu, Zn, Co). These novel compounds have been characterized by elemental analysis, together with FT-IR,(1)H NMR, UV-Vis and mass spectral data. (C) 2008 Elsevier Ltd. All rights reserved.