{μ-6,6′-Dimethoxy-2,2′-[cyclohexane-1,2-diylbis(nitrilomethylidyne)]diphenolato}trinitratocopper(II)lutetium(III)

In the title dinuclear CuII–LuIII salen-type complex, [CuLu(C22H24N2O4)(NO3)3], with the ligand 6,6′-dimethoxy-2,2′-[cyclohexane-1,2-diylbis(nitrilomethylidyne)]diphenolate, the irregular nine-coordinate LuIII coordination sphere comprises four O atoms from the ligand and five O atoms from three nitrate groups, two bidentate and one monodentate [Lu—O = 2.230 (3)–2.621 (4) Å]. The slightly distorted square-planar four-coordinate CuII atom comprises two imine N atoms [Cu—N = 1.903 (4) and 1.912 (4) Å] and two phenolate O atoms from the ligand molecule [Cu—O = 1.897 (3) and 1.906 (3) Å]. All atoms of the cyclohexane ring of the ligand molecule are disordered over two sets of sites with equal occupancy.