{mu-6,6 '-Dimethoxy-2,2 '-[ethane-1,2diylbis(nitrilomethylidyne)]diphenolato 1 kappa O-4(6),O-1,O-1 ',O-6 ':2 kappa O-4(1),N,N-',O-1 '}(methanol-1 kappa O)(perchlorato-1 kappa O)copper(II)sodium(I)

The molecule of the title compound, [CuNa(C18H18N2O4)(ClO4)(CH3OH)], is almost planar with mean deviation of 5.2(8)degrees. The coordination environment of the Cu-II ion is distorted square-planar and it is N2O2-chelated by the 6,60-dimethoxy-2,2'-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolate Schiff base ligand. The Na atom is chelated by the four O atoms of the Schiff base ligand, and coordinated by a methanol molecule and a perchlorate anion. The six-coordinate Na atom adopts a distorted octahedral coordination geometry. The O atoms of the perchlorate anion are disordered over two sites with site-occupancy factors of 0.697 (5) and 0.303 (5). O-H center dot center dot center dot O hydrogen bonding occurs.