Tetrakis(μ‐α‐naphthyl­acetato‐κ2O:O′)­bis­[(di­methyl sulfoxide‐κO)copper(II)]–α‐naphthyl­acetic acid–di­methyl sulfoxide (1/2/2)

The title complex, [Cu2(NAA)4(DMSO)2]·2(HNAA)·2DMSO [NAA = α-naphthyl­acetate (C12H9O2) and DMSO = di­methyl sulfoxide (C2H6OS)], consists of a centrosymmetric dinuclear cage unit, in which two CuII atoms are separated by 2.626 (1) A and bridged by four bidentate carboxyl­ate groups of naphthyl­acetates, with an average Cu—O distance of 1.961 (2) A. Each CuII atom has a five-coordinate square-pyramidal environment with the di­methyl sulfoxide mol­ecule at the apical position. The Cu—O bond length to the DMSO mol­ecule is 2.160 (2) A.