{μ-6,6′-Dimethoxy-2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato-1κ4O6,O1,O1′,O6′:2κ4O1,N,N′,O1′}(methanol-1κO)(perchlorato-1κO)nickel(II)sodium

The molecule of the title compound, [NaNi(C18H18N2O4)(ClO4)(CH3OH)], is almost planar, the maximum deviation from the molecular plane being 5.3 (1) angstrom. The Ni2+ ion is N2O2 coordinated by the Schiff base ligand, leading to a slightly distorted square-planar environment. The Na atom is chelated by the four O atoms of the Schiff base ligand and is coordinated by the O atoms of a methanol ligand and a perchlorate anion. The perchlorate ion is disordered over two sites with occupancies 0.723 (12): 0.277 (12).