The architectures of 1D coordination polymers with the versatile 7-chloroquinoline-4-alanine ligand mediated by anions: Syntheses, structures and luminescent properties

Three new coordination polymers based on the 7-chloroquinolin-4-alanine ligand have been synthesized and characterized. The cooperative effect of the anion and the ligand produce a one-dimensional ladder-like polymer and a 3D supramolecular framework formed by π-π stacking interactions. The non-cooperative effect of the anion and ligand give a 3D supramolecular framework with 1D channels. The results suggest that the cooperative effect of the anion and the ligand plays a role in mediating the structure in crystal engineering.