Anion-directed assembly in the formation of a new mixed-ligand metal organic framework

A new two-dimensional metal organic framework is synthesized and characterized. The encapsulated chloride anions organize a collection of building units into a novel mixed-ligand metal organic supramolecular assembly, indicating specific host–guest recognition. By contrast, the addition of F−, Br−, I−, View the MathML sourcePO43- anions only give out the coordination complexes with single ligand. Reactions of the Zn2+ ion with 1,2,4-benzenetricarboxylic acid and pyridine-2,5-dicarboxylic acid have been investigated with emphasis on the factors that govern reaction results. And the sample is characterized by the elemental analysis, TGA, XPRD, IR, and luminescent data.