Date Published: April 01, 2011
Publisher: International Union of Crystallography
Author(s): Hossein Aghabozorg, Fatemeh Jafarbak, Masoud Mirzaei, Behrouz Notash.
In the title compound, (C4H8N3O)2[Zn(C7H3NO4)2(H2O)2]·2H2O, the ZnII ion is six-coordinated in a distorted octahedral geometry by two pyridine-2,4-dicarboxylate (pydc) ligands in the equatorial plane and two water molecules in the axial positions. The pydc ligands act as bidentate chelating ligands through one carboxylate O atom and the pyridine N atom. Intermolecular N—H⋯O, O—H⋯O and weak C—H⋯O hydrogen bonds stabilize the crystal structure.
For a review article on proton-transfer compounds, see: Aghabozorg et al. (2008b ▶). For related structures, see: Aghabozorg et al. (2008a ▶,c ▶); Attar Gharamaleki et al. (2009 ▶); Moghimi et al. (2004 ▶, 2005 ▶).