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−, PO43- 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.

Graphical abstractA new two-dimensional metal organic framework is synthesized and characterized by single crystal, TGA, XPRD, IR, and luminescent data. The encapsulated chloride anions organize a collection of building units into a novel mixed-ligand metal organic supramolecular assembly, indicating specific host–guest recognition.Figure optionsDownload full-size imageDownload as PowerPoint slide