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.