Syntheses, Structures, and Magnetic Properties of Acetato- and Diphenolato-Bridged 3d–4f Binuclear Complexes [M(3-MeOsaltn)(MeOH)x(ac)Ln(hfac)2] (M = ZnII, CuII, NiII, CoII; Ln = LaIII, GdIII, TbIII, DyIII; 3-MeOsaltn = N,N′-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato; ac = Acetato; hfac = Hexafluoroacetylacetonato; x = 0 or 1)

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 synthesized and characterized, where 3-MeOsaltn, ac, and hfac denote N,N′-bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato, acetato, and hexafluoroacetylacetonato, respectively. The X-ray analyses demonstrated that all the complexes have an acetato- and diphenolato-bridged MII–LnIII binuclear structure. The CuII–LnIII and ZnII–LnIII complexes are crystallized in an isomorphous triclinic space group P1, where the CuII or ZnII ion has square pyramidal coordination geometry with N2O2 donor atoms of 3-MeOsaltn at the equatorial coordination sites and one oxygen atom of the bridging acetato ion at the axial site. The CoII–LnIII and NiII–LnIII complexes are crystallized in an isomorphous monoclinic space group P21/c, where the CoII or NiII ion at the high-spin state has an octahedral coordination environment with N2O2 donor atoms of 3-Me...