Uranium(IV) trifluoromethanesulfonate and some ternary uranium(IV) trifluoromethanesulfonates

Abstract

U(SO3CF3)4 and MIIUIV(SO3CF3)6, M = Mg, Mn, Fe, Zn, have been prepared by the reaction of their respective trifluoroacetates with HSO3CF3 acid in CF3COOH medium at room temperature. Infrared data indicate bidentate bridging —SO3CF3 groups in these compounds. Magnetic moments show the presence of uranium(IV) species. Diffuse reflectance spectra suggest six coordinate uranium(IV) although the presence of possible eight or higher coordinate uranium(IV) cannot be ruled out. X-ray diffraction studies reveal them to be definite entities.