Selective Synthesis of Binuclear and Trinuclear Phthalocyanines Covalently Linked by a One Atom Oxygen Bridge

Abstract

The diiminoisoindolines obtained from 4-neopentoxyphthalonitrile and bis[3, 4-dicyanophenyl] ether gave, in a mixed condensation reaction, binuclear and trinuclear phthalocyanines covalently linked by one atom oxy bridges with the dimer predominating. The underivatized 4-neopentoxyphthalonitrile condensed with the diiminoisoindoline of bis[3,4-dicyanophenyl] ether in a cross reaction to give the same dimer and trimeric phthalocyanines but the trimer predominated in this reaction. A cobalt derivative of bis-2-[19,16,23-trineopentoxyphthalocyaninyl] ether, the binuclear phthalocyanine, was prepared. All phthalocyanines exhibited parent ions in their fast atom bombardment mass spectra.