Bis{(μ-acetato)(N,N′-dimethylformamide)[μ-bis(salicylidene)-1,3-propanediaminato]nickel(II)}copper(II)

Abstract

The crystal structure of the title compound, [CuNi2(C17H16N2O2)2(C2H3O2)2(C3H7NO)2], contains a linear hetero-trinu­clear complex with a central CuII ion located on an inversion center. The central copper(II) ion as well as the terminal nickel(II) ions have distorted octahedral coordination. Four O atoms from two bis­(salicyl­idene)-1,3-propane­diaminate (SALPD2−, C17H16N2O22−) ligands and one O atom from each bridging acetate group constitute the octahedral coordination sphere around the CuII atom. The six nearest neigbors around the NiII atom are the two O and two N atoms of a SALPD2− ligand and one O atom each from an acetate and a di­methyl­form­amide group. The Cu—Ni pairs are triply bridged via O atoms from SALPD2− ligands and acetate groups. The Cu⋯Ni distance is 3.0556 (5) Å. The structure is isomorphous with that of [CdNi2(C17H16N2O2)2(C2H3O2)2(C3H7NO)2].