title: Uranyl heteropolyoxometalate: synthesis, structure, and spectroscopic properties.
abstract: A novel uranium heteropolyoxometalate, [H(3)O](4)[Ni(H(2)O)(3)](4){Ni[(UO(2))(PO(3)C(6)H(4)CO(2))](3)(PO(4)H)}(4)·2.72H(2)O, has been prepared under mild hydrothermal conditions using the diethyl(2-ethoxycarbonylphenyl)phosphonate ligand and in situ ligand synthesis of the HPO(4)(2-) anion. The cluster is derived from a common UO(7), pentagonal bipyramid and is constructed by employing nickel(II) metal ions as linkers. The 3d-5f heteropolyoxometalate core incorporates 12 classical pentagonal uranyl groups and four Ni(2+) octahedral units.
authors.affiliation: Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, USA.
authors.forename: Pius O
authors.initials: PO
authors.lastname: Adelani
authors.forename: Allen G
authors.initials: AG
authors.lastname: Oliver
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Albrecht-Schmitt
mesh_terms: D060326:Chemistry Techniques, Synthetic; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D009532:Nickel / Q000737:chemistry*; D013057:Spectrum Analysis; D014501:Uranium / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D014501:Uranium; D009532:Nickel