A zinc-organic coordination polymer of glycine-functionalized naphthalenediimide ligand

The first metal–organic coordination polymer of amino-acid functionalized naphthalenediimide (NDI) ligand, [Zn(Gly-NDI)(DMF)2]n (1), has been synthesized and characterized. Single-crystal X-ray diffraction revealed that the Zn ions are linked by anti-conformational Gly-NDI ligands, and 1 displays a one-dimensional zigzag chain coordination polymer. These chains are cross-linked through strong π···π stacking interactions between NDI cores to give a three-dimensional supramolecular framework with square planar 4-connected CdSO4 (cds) topology. The thermal stability and fluorescence emissions of 1 were also investigated.