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The title compound, [Cu 2 (C 20 H 14 N 2 O 2 ) 2 ]·2C 3 H 7 NO, consists of a centrosymmetric dimer composed of two copper(II) ions and two tetra­dentate salphen ligands {H 2 salphen is 2,2′-[ o -phenyl­enebis(nitrilo­methyl­idyne)]diphenol}, and two dimethyl­formamide solvent mol­ecules. The Cu II  atom is bonded to two N imino atoms and three phenolate O atoms of salphen. One deprotonated phenol group of each ligand bridges two Cu atoms, forming the dimer. The geometry about the five-coordinate Cu atom can best be described as slightly distorted recta­ngular pyramidal. The crystal structure is stabilized by π–π inter­actions [centroid-centroid distance 3.779 (2) Å] and C—H⋯O hydrogen bonds.

Bis{μ-2,2′-[o-phenylenebis(nitrilomethylidyne)]diphenolato}dicopper(II)N,N′-dimethylformamide disolvate