(Acetato-κO)(2-{[2-(dimethyl-amino)-ethyl-imino](phen-yl)meth-yl} -5-methoxy-phenolatoκ-κ³ N,N′,O ¹)copper(II)

The Cu^II atom in the title complex, [Cu(C18H21N2O2)(C2H3O2)], is tetra-coordinated by two N atoms and two O atoms, of which one O atom is attributed to the acetate group and the other atoms are from the tridentate salicylideneiminate ligand, forming a slight distorted square-planar environment. The other acetate O atom exhibits a very weak intra-molecular inter-action toward the Cu atom, the Cu - O distance of 2.771 (2) Å being shorter than the van der Waals radii for Cu and O atoms (2.92 Å). Furthermore, there are weak inter-molecular inter-actions, in which the bonding O atom of the acetate group can bridge to the Cu atom of another complex, and the distance of 2.523 (2) Å is about 0.4 Å shorter than the van der Waals Cu - O distance in other crystal structures.