IR spectroelectrochemical study on UVO2+ complex:: First evidence for weakening of U=O bond strength in uranyl moiety with reduction from U(VI) to U(V)

We have obtained the first evidence that the U=O bond strength in uranyl moiety is weakened with the reduction from (UO22+)-O-VI to (UO2+)-O-V from the IR spectroelectrochernical study on (UO2)-O-VI(saloph)DMSO and [(UO2)-O-V(saloph)DMSO](-) (saloph = N, N'-disalicylidene-o-phenylenediaminate, DMSO = dimethyl sulfoxide) complexes with the thin layer electrode cell for IR measurements.