Electrolytic Reduction of U(IV) Salts to U(III) inN,N-Dimethylformamide: Effects of Electrode Materials and Counter Anions

Electrodeposition of uranium in dimethyl sulfoxide and its inhibition by acetylacetone as studied by EQCM

“…The uranium battery has been studied by using uranium ␤-diketone complexes in aprotic solvents [3] in order to avoid the disproportionation reaction of U(V) from degrading to U(IV) and U(VI) in the presence of the proton [4,5]. Recently, we reported a quantitative electrolysis of the dimethyl sulfoxide (DMSO) solution of U(VI) to give the U(V) solution which was relatively stable as the half-life of 2 days at 16 • C [6,7].…”

Electrochemical and spectroscopic investigations of uranium(III) with N,N,N′,N′-tetramethylmalonamide in DMF

“…It is well known that U(VI) and U(IV) complexes of acetylacetone are stable whereas that of U(V) had been never prepared. Recently, stable solutions of U(V) complexes with acetylacetonate and benzoylacetonate were obtained [17,18]. However, preparation of the U(III) complex with ␤-diketone ligands was not possible in accordance with the report that the acetylacetone oxidizes U(III) to give U(IV) [19].…”

Preparation of Uranium(III) Triflate in Tetrahydrofuran by Reduction of U(OTf)4with Zinc amalgam

“…The reason why the decay shows convex curve with departing from dashed linear decay has not been addressed yet, just like the initial situation for the decay of U(V) 17 which was later clearly analyzed as two exponential decay. 18 In contrast, when the solution was kept contact with Zn(Hg), the absorption intensity shows only little decrease (dashed curve of Fig. 3 and closed circle of Fig.…”