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A series of inorganic-organic hybrids K2NamH9-m[{Ln(GeW11O39)2}{Cu2(bpy)2(μ-ox)}]·nH2O(bpy=2,2-bipyridine and ox= oxalate;Ln=La,Nd,Sm,Eu,Gd;n=19,17,22,20,19;m=4,4,4,9,2)were isolated after reacting in a potassium acetate buffer.X-ray structural analyses show that compounds 1-5 are isomorphic and consist of[Ln(GeW11O39)2] 13-polyoxoanion building blocks and oxalate-bridged dinuclear copper metalorganic complex with a 1D chain structure.The 1D chain further connects into the 3D framework byπ-πinteractions with neighboring bpy groups.The magnetic susceptibility data indicate that anti-ferromagnetic coupling between the neighboring Cu2+ions in the structure and the rare earth ions affects magnetic property of the structure.
A series of inorganic-organic hybrids K2NamH9-m [{Ln (GeW11O39) 2} {Cu2 (bpy) 2 (μ-ox)}] nH2O (bpy = 2,2-bipyridine and ox = oxalate; Ln = Nd, Sm, Eu, Gd; n = 19,17,22,20,19; m = 4,4,4,9,2) were isolated after reacting in a potassium acetate buffer. X- ray structural analyzes have shown that compounds 1-5 are isomorphic and consist of [Ln (GeW11O39) 2] 13-polyoxoanion building blocks and oxalate-bridged dinuclear copper metalorganic complex with a 1D chain structure. 1D chain further connects into the 3D framework byπ-πinteractions with neighboring bpy groups The magnetic susceptibility data indicates that anti-ferromagnetic coupling between the neighboring Cu2 + ions in the structure and the rare earth ions affects magnetic property of the structure.