title: Ni(2)Sr(PO(4))(2)·2H(2)O.
abstract: The title compound, dinickel(II) strontium bis-[ortho-phosphate(V)] dihydrate, was obtained under hydro-thermal conditions. The crystal structure consists of linear chains (∞) (1)[NiO(2/2)(OH(2))(2/2)O(2/1)] of edge-sharing NiO(6) octa-hedra ( symmetry) running parallel to [010]. Adjacent chains are linked to each other through PO(4) tetra-hedra (m symmetry) and arranged in such a way to build layers parallel to (001). The three-dimensional framework is accomplished by stacking of adjacent layers that are held together by SrO(8) polyhedra (2/m symmetry). Two types of O-H⋯O hydrogen bonds involving the water mol-ecule are present, viz. one very strong hydrogen bond perpendicular to the layers and weak trifurcated hydrogen bonds parallel to the layers.
authors: Laboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V-Agdal, Avenue Ibn Battouta, BP 1014, Rabat, Morocco.
authors: Abderrazzak
authors: A
authors: Assani
authors: Mohamed
authors: M
authors: Saadi
authors: Mohammed
authors: M
authors: Zriouil
authors: Lahcen
authors: L
authors: El Ammari
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