A series of 3d–4f binuclear complexes, [M­(3-MeOsaltn)­(MeOH)x(ac)­Ln­(hfac)2] (x = 0 for M = CuII, ZnII; x = 1 for M = CoII, NiII; Ln = GdIII, TbIII, DyIII, LaIII), have been...