catena-Poly[{μ-N'-[2-(carboxylatomethoxy)benzylidene]-2-hydroxybenzohydrazidato}(methanol-κO)nickel(II)]

In the title compound, [Ni(C16H12N2O5)(CH3OH)] n , the unique Ni(II) ion is coordinated in a distorted octa-hedral environment by three O atoms and one N atom from a symmetry-unique ligand in the equatorial sites. Coordination of the axial sites is provided by an O atom of a symmetry-unique methanol ligand and an O atom of a carboxyl-ate group from a symmetry-related ligand, thus generating a one-dimensional polymer parallel to [010]. In the crystal, O-H⋯N hydrogen bonds and π-π inter-actions, with a centroid-centroid distance of 3.693 (2) Å, form a two-dimensional network parallel to (100). In addition, weak C-H⋯O and C-H⋯N hydrogen bonds complete a three-dimensional network. An intra-molecular O-H⋯O hydrogen bond is also observed.