| Abstract: | Single crystals of PbUO2(CH3COO)4(H2O)3 have been investigated by X-ray diffraction (R = 0.029 for 3175 reflections). The structure of this compound is formed by [Pb(CH3COO)(H2O)3]+ chains, which are oriented along the [100] axis and limited by one-core complexes [UO2(CH3COO)3]−. The coordination numbers of the Pb(II) and U(VI) atoms are 8, and the coordination polyhedron of uranium is a hexagonal bipyramid whose vertices contain oxygen atoms of three bidentate cyclic acetate groups and the uranyl group. Taking into account the different crystallographic roles of acetate ions, the crystal-chemical formula of [PbUO2(CH3COO)4(H2O)3] chains can be written as AA′B 21 B 11(B 01)2 M 31, where A = Pb; A′ = UO22+; M 1 = H2O; and B 21, B 11, and B 01 are CH3COO− groups. |
