Binuclear phthalocyanines with aromatic bridges

Abstract

Three different binuclear phthalocyanines were prepared and characterized. Two of the binuclear phthalocyanines are cofacially linked by rigid naphthalene and anthracene spacers, while the third consists of a direct linkage between two phthalocyanine rings. The dicobalt, dicopper, and dizinc derivatives were prepared by inserting the metal into the metal-free species. The synthesis and the physical and spectroscopic properties of the precursor bisphthalonitriles are also included. Keywords: phthalocyanines, cofacial, binuclear, bisphthalonitriles.