Synthesis and crystal structure of thorium bis(hydrogenphosphate) monohydrate |
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| Authors: | Salvadó Miguel A Pertierra Pilar Castro Germán R Trobajo Camino García José R |
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| Affiliation: | Departamentos de Química Física y Analítica y Química Orgánica e Inorgánica, Universidad de Oviedo, 33006 Oviedo, Spain. |
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| Abstract: | Microcrystals of Th(HPO 4) 2.H 2O were hydrothermally obtained from a Th(NO 3) 4-CO(NH 2) 2-H 3PO 3-H 2O system ( T = 180 masculineC). The structure [orthorhombic, Pbca, a = 9.1968(2) A, b = 18.6382(2) A, c = 8.7871(2) A], unlike alpha-Zr(HPO 4) 2.H 2O-type layered compounds, consists of a three-dimensional framework with PO 4 tetrahedra coordinated to Th atoms. The water molecule is also coordinated to the Th atom and projected toward small channels running along the directions of the a and c axes. The ThO 6O(w) environment could be described as a highly distorted pentagonal bipyramid. |
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