Potassium Bis(2-[α-Hydroxyalkyl/Aryl] Benzimidazolato) Dioxovanadates(V) through Base Assisted Aerial Oxidation of the Corresponding Oxovanadium(IV) Complexes †

Bis(2-[α-hydroxyalkyl/aryl]benzimidazolato)dioxovanadates(V) dihydrates, as their potassium salts, were prepared by the reaction of [VO(acac)₂] with the respective benzimidazole followed by aerial oxidation in presence of KOH. An octahedral structure has been proposed for these complexes on the basis of IR, electronic and ¹H NMR spectral studies, and thermogravimetric analysis.