Part 1
Crystal Structure of a Novel Polymer of Dioxo tetrakis(μ-dimethyl-phosphato) Dimethyl-sulfoxide Uranium(VI) Complex, C6H18P2O11SU
2006 Volume 22 Pages x3-x4
Details
2006 Volume 22 Pages x3-x4
The crystal structure of [UO2(μ-DMP)4(DMSO)]n, (DMP = dimethyl phosphate), (DMSO = dimethyl sulfoxide), has been determined by the X-ray diffraction method. This polymeric complex crystallizes in the orthorhombic system, space group P212121, with four molecules per unit cell. The unit cell dimensions are a = 8.8085(13)Å, b = 11.8499(17)Å, c = 15.359(2)Å, V = 1603.2(4)Å3. The final R value is 0.035 for 13322 measured reflections. In this complex, a distorted pentagonal bipyramidal coordination is located around the central U atom. There are two oxygens of uranyl at the axial position, four oxygen atoms of four bridging DMP ligands and one oxygen atom of DMSO are in the equatorial position. The phosphorous atom in the bridging DMP is arranged in a deformed tetrahedron skeleton with a simultaneously Z-in, Z-out distortion, and the phosphate methyl esters have gt conformer (gauche, trans).
