title: High-Pressure Synthesis and Characterization of the Actinide Borate Phosphate U2[BO4][PO4].
abstract: A new actinide borate phosphate, U2[BO4][PO4], was synthesized in a Walker-type multianvil apparatus at 12.5 GPa and 1000 °C. The crystal structure was determined from single-crystal X-ray diffraction data collected at room temperature. U2[BO4][PO4] crystallizes in the monoclinic space groupP21/cwith four formula units per unit cell and the lattice parametersa= 854.6(2),b= 775.3(2),c= 816.3(2) pm, andβ= 102.52(3)°. The structure consists of double layers of linked uranium-oxygen polyhedra parallel to [100]. The borate tetrahedra are located between the uranium-oxygen layers inside the double layer. The phosphate groups link the double layers.
authors.affiliation: Institut für Allgemeine, Anorganische und Theoretische Chemie, Leopold-Franzens-Universität Innsbruck Innrain 80-82, 6020 Innsbruck, Austria.
authors.forename: Ernst
authors.initials: E
authors.lastname: Hinteregger
authors.affiliation: Institut für Allgemeine, Anorganische und Theoretische Chemie, Leopold-Franzens-Universität Innsbruck Innrain 80-82, 6020 Innsbruck, Austria.
authors.forename: Klaus
authors.initials: K
authors.lastname: Wurst
authors.affiliation: Institut für Mineralogie und Petrographie, Leopold-Franzens-Universität Innsbruck Innrain 52f, 6020 Innsbruck, Austria.
authors.forename: Lukas
authors.initials: L
authors.lastname: Perfler
authors.affiliation: AG Fluorchemie, Department Chemie, Technische Universität München Lichtenbergstr. 4, 85747 Garching, Germany.
authors.forename: Florian
authors.initials: F
authors.lastname: Kraus
authors.affiliation: Institut für Allgemeine, Anorganische und Theoretische Chemie, Leopold-Franzens-Universität Innsbruck Innrain 80-82, 6020 Innsbruck, Austria.
authors.forename: Hubert
authors.initials: H
authors.lastname: Huppertz
keywords: Actinides; Borate phosphates; High-pressure chemistry; Uranium