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High‐Pressure Synthesis and Characterization of the Actinide Borate Phosphate U 2 [BO 4 ][PO 4 ]
Author(s) -
Hinteregger Ernst,
Wurst Klaus,
Perfler Lukas,
Kraus Florian,
Huppertz Hubert
Publication year - 2013
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201300662
Subject(s) - chemistry , actinide , monoclinic crystal system , boron , crystallography , crystal structure , uranium , x ray crystallography , inorganic chemistry , diffraction , metallurgy , materials science , physics , organic chemistry , optics
A new actinide borate phosphate, U 2 [BO 4 ][PO 4 ], 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. U 2 [BO 4 ][PO 4 ] crystallizes in the monoclinic space group P 2 1 / c with four formula units per unit cell and the lattice parameters a = 854.6(2), b = 775.3(2), c = 816.3(2) pm, and β = 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.