Synthesis and Characterization of VO(IV) and UO2(VI) Complexes with Nitrogen and Oxygen Donor Ligands

Abstract

A few complexes of VO(IV) and UO₂(VI) with two nitrogen and oxygen donor ligands, N,N´-diethylenediamine-bis(3-carboxypropenamide) [DEBCPH₂] and N,N´-propylenediamine-bis(3-carboxypropenamide) [PBCPH₂] have been synthesized and characterized by chemical analysis, conductance, magnetic, thermal and infrared spectral studies. On the basis of the above studies it is concluded that PBCPH₂ acts as tetradentate in both the oxo-vanadium(IV) and dioxouranium(VI) complexes. The complexes have been assigned the formulae [VO(PBCP)]·2H₂O and [UO₂(PBCP)] respectively. On the other hand, DEBCPH₂ acts as tetradentate in the oxovanadium(IV) complex whereas in the dioxouranium(VI) complex it shows pentadentate nature. Thus, these two complexes have been assigned the formulae [VO(DEBCP)]·2H₂O and [UO₂(DEBCP)] respectively.