Synthesis and properties of complexes of hexavalent actinides with dimethyl sulfoxide [AnO2(DMSO)5](ClO4)2 (An = U, Np, Pu)

Abstract

The complexes [NpO2(DMSO)5](ClO4)2 (1) and [PuO2(DMSO)5](ClO4)2 (2), isostructural to the known uranyl complex, were synthesized in the form of single crystals. Their crystallographic characteristics were determined by single crystal X-ray diffraction. The IR and electronic absorption spectra of the crystalline U(VI), Np(VI), and Pu(VI) complexes were measured and analyzed.