Di-μ3-acetato-bis­{μ-6,6′-dieth­oxy-2,2′-[propane-1,2-diylbis(nitrilo­methanylyl­idene)]diphenolato}dicadmiumdisodium ethanol 0.67-solvate

In the crystal of the title compound, [Cd2Na2(C2H3O2)2(C21H24N2O4)2]·0.67C2H6O, the doubly deprotonated Schiff base ligand N,N',O,O'-chelates to the Cd(II) cation, which is also O,O'-chelated by the acetate ion. Two Cd-Schiff base units are connected to two Na(+) atoms to form the tetra-nuclear complex, in which the Cd(2+) and Na(+) cations show distorted octa-hedral coordinations. The asymmetric unit consists of half a tetra-nuclear mol-ecule (lying on an inversion center) and a full tetra-nuclear mol-ecule (lying on a general position) along with a lattice ethanol mol-ecule, which links to the coordinating acetate ion via an O-H⋯O hydrogen bond. In the crystal, the propyl and ethyl groups of the complex mol-ecule are disordered over two positions in a 1:1 ratio; the ethyl group of the lattice ethanol mol-ecule is also equally disordered over two positions.