Synthesis and characterization of new polymeric phthalocyanines substituted with pyridine through methyleneoxy bridges by microwave irradiation

A tetranitrile monomer was synthesized by nucleophilic aromatic substitution of pyridine-2,6-diyldimethanol onto 4-nitrophthalonitrile. A metal-free phthalocyanine polymer was prepared by the reaction of a tetranitrile monomer with 4,4′-[pyridine-2,6-diylbis(methyleneoxy)]diphthalonitrile in DMAE. Ni(II), Co(II), Cu(I)-phthalocyanine polymers were prepared by reaction of the tetranitrile compound with the chlorides of Ni(II), Co(II) and Cu(I) in DMAE. The Zn(II)-phthalocyanine polymer was prepared by reaction of the tetranitrile compound with the acetates of Zn(II) in DMAE. The new compounds were characterized by a combination of IR, 1H NMR, 13C NMR, UV–vis, elemental analysis and MS spectral data.