REDOX REACTIONS OF AN MO(V) TETRASULFOPHTHALOCYANINE

The preparation of an Mo(V) tetrasulfophthalocyanine and some of its t hermal and photochemical reactions have been investigated in this work . Electrochemical processes have been followed by means of the UV-Vis spectral changes and compared with those observed in flash photolysis. Mo(IV) and Mo(V)-ligand-radical species are common intermediates of t he electrochemical and photochemical reactions. In 254 nm irradiations of the Mo(V) tetrasulfophthalocyanine in aqueous solutions of 2-propa nol, the macrocycle can be photohydrogenated and the product of the ph otolysis can be reoxidized with O-2 back to the parent complex.