Syntheses, structures and luminescent properties of four zinc(II) coordination polymers constructed from mixed isophthalic acid and flexible unsymmetrical bis(pyridyl) ligands

Four mixed-ligands compounds assembled from four flexible unsymmetrical bis(pyridyl) ligands were synthesized and characterized, which exhibit linear chain, double chain, (4,4) layer, as well as layer structure with (4·64·8)2(42·64) topology.288