Synthesis and Crystal Structure of a Uranylcontaining Complex [U(CO3)3(H2O)2]•2H2O

A uranylcontaining compound [U(CO3)(3)(H2O)(2)]center dot 2H(2)O has been synthesized under hydrothermal condition and characterized by X-ray single-crystal analysis. Crystal structural analysis indicates that this compound consists of three CO32- molecules, one U6+. The results reveal that the title compound presents a 3D frame work built up by O-H center dot center dot center dot O week hydrogen bonds interactions. The central uranium atom is eight-coordinated through three CO32- molecules and two H2O. The Compound Shows a coplanar hexagonal network structure, each hexagon containing a hexagonal hole with a water moleculet. CCDC: 737313.