Facile synthesis of a luminescent copper(I) coordination polymer containing a flexible benzotriazole-based ligand: An effective catalyst for three-component azide-alkyne cycloaddition

•A new luminescent 1-D copper(I) coordination polymer was easily synthesized and characterized.•The crystal structure was determined by single-crystal X-ray diffraction.•Photoluminescence spectroscopy and relativistic DFT calculations were performed.•Effective catalyst for three-component azide-alkyne cycloaddition reaction.