Synthesis and Electrohemical Properties of New Tetra-2-(4-benzyloxyphenyl)ethanol Substituted Metal Free and Metallophthalocyanines

The novel dinitrile compound (3) and peripherally tetra 2-(4-benzyloxyphenyl)ethanol substituted metal-free (4), zinc(II) (5), cobalt(II) (6) and copper(II) (7) phthalocyanines were synthesized and characterizated for the first time in this study. Electrochemical characterization of metal-free and metallophthallocyanines were determined by using cyclic voltammetry (CV) and square wave voltammetry (SWV) techniques. Metal-free and metallophthalocyanines having redox inactive centers (Zn +2 , Cu +2 ) showed similar Pc based electron transfer processes. On the other hand, Co II metal ion behaves as redox active cations in the core of the Co- phthalocyanine. Therefore, Co- phthalocyanine gives one metal based reduction reaction [Co II Pc -2 ] / [Co I Pc -2 ] -1 .