The effect of iron binding on uranyl(v) stability

Abstract

The tripodal heptadentate Schiff base trensal³⁻ ligand allowed the synthesis and characterization of stable uranyl(v) complexes presenting UO₂⁺⋯K⁺ or UO₂⁺⋯Fe²⁺ cation–cation interactions. The presence of Fe²⁺ bound to the uranyl(v) oxygen leads to increased stability with respect to proton induced disproportionation and to an increased range of stability of the uranyl(v) species with respect both to oxidation and reduction reactions.