Two new homometallic coordination polymers based on a carboxylate-functionalized salen ligand

Two new homometallic coordination polymers 1 and 2 have been prepared by the directly one-step hydrothermal reactions of a carboxylate-functionalized salen ligand with Zn(II) and Co(II) ions, respectively. 1 exhibits a 3D open framework built by [Zn4(μ4-O)(carboxylate)8] units and double Zn-salen ligands, while 2 shows a 1D chain structure constructed by cobalt ions and the ligand derived from the hydrolysis to one CN bond of salen ligand. The preliminary fluorescence measurements of 1–2 show the influence of structure on the property.