Acta Cryst. (2008). E64, m398  [ doi:10.1107/S1600536807065129 ]

Bis[1-hydroxyethylidenediphosphonato(1-)](1,10-phenanthroline)nickel(II) monohydrate

X. Zhang, C. Ge, X. Zhang and Q. Liu

Abstract: In the mononuclear title compound, [Ni(C₂H₆O₇P₂)₂(C₁₂H₈N₂)]·H₂O, the Ni^II atom (site symmetry 2) is bonded to two phosphate-based O,O'-bidentate chelate ligands and one N,N'-bidentate 1,10-phenanthroline ligand, resulting in a slightly distorted cis-NiN₂O₄ octahedral geometry. In the crystal structure, pairs of complexes are linked by double hydrogen bonds, forming a one-dimensional chain-like structure. Aromatic - stacking interactions [centroid-centroid separation = 3.768 (2) Å] and further hydrogen bonds generate a two-dimensional structure. The water O atom also lies on a crystallographic twofold axis.

Online 23 January 2008

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