Cyclic voltammetry of OMoV(OH)Pc in chlotronaphthalene shows two quasi
reversible oxidation couples at 0.38 and 1.22 V and three quasi-revers
ible reduction couples at - 0.74, - 1.15 and - 1.85 V vs S.C.E. Bulk e
lectrolysis of OMoV(OH)Pc(pC(2-) = phthalocyanine dianion) shows that
the first oxidation couple is due to the oxidation of the central Mo-V
metal to Mo-VI and the first reduction couple due to reduction to OMo
(IV)Pc. Cyclic voltammetry and spectroelectrochemistry in DMSO also sh
owed redox activity at the metal. Further reductions or oxidations in
OMo(V)Pc complexes occur at the phthalocyanine ring. OMoV(OH)Pc is rea
dily photooxidized at the metal in the presence dichloromethane or dic
hlorobenzene, with the formation of OMo(VI)Pc species.