Interactions between dimers of {1,1′-[o-phenylenebis(nitrilomethylidyne)]di-2-naphtholato-κ⁴O,N,N′,O′}nickel(II)

In the title compound, [Ni(C₂₈H₁₈N₂O₂)], the Ni^II centre has a square-planar coordination geometry in which the Schiff base ligand acts as a cis-O,N,N′,O′-tetradentate ligand. The crystal structure is built up of centrosymmetric dimer units stacked into chains along the [010] direction. Adjacent chains associate via C—H...O hydrogen bonding only, leading to a two-dimensional sheet-like structure consisting of layers parallel to (10). The cofacial dimeric complex contains an Ni...Ni contact of 3.291 (4) Å.