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 octa­hedral 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 carboxyl­ate 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 inter­actions, 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 intra­molecular O—H...O hydrogen bond is also observed.