A simple and novel method for the preparation of 1,3,8,10,15,17,22,24-octanitrophthalocyanine derivatives, MPcON's (M = Fe (III)Cl, Zn(II), Co(II), Cu(II) and Ni(II)), was developed. The dark green complexes were characterized by elemental analysis, electronic spectra, IR spectra, thermogravimetry, differential thermal analysis, powder X-ray diffraction and magnetic susceptibility.

A simple and novel method for the preparation of 1,3,8,10,15,17,22,24-octanitrophthalocyanine derivatives, MPcON's (M = Fe (III)Cl, Zn(II), Co(II), Cu(II) and Ni(II)), was developed. The dark green complexes were characterized by elemental analysis, electronic spectra, IR spectra, thermogravimetry, differential thermal analysis, powder X-ray diffraction and magnetic susceptibility. The earlier interest in metal phthalocyanines was mainly because of their importance as dyes and pigments1−3. Recently, intensive research has focussed on producing phthalocyanines for catalysts4, photosensitizers1 , photoconductivity1−4, thermally stable polymers5−10 and for photodynamic therapy11. Versatile properties like electrical conductivity, thermal stability, catalytic properties, photoconductivity and chemical resistance of these complexes are influenced by the nature of the metal, and peripheral substitution in thephthalocyanine ring. The present work describes the synthesis and characterization of 1,3,8,10,15,17,22,24- octanitrophthalocyanine derivatives of Zn (II), Fe (III)Cl, Co(II), Ni(II) and Cu(II). The method outlined here is taken from the methods described for the synthesis of different types of phthalocyanine derivatives12. For the sake of comparison, CuPcON, CoPcON and NiPcON were synthesized and characterized by adopting the reported procedure