Ag-Based Coordination Polymers Based on Metalloligands and Their Catalytic Performance in Multicomponent A³‑Coupling Reactions

Two silver­(I)-based coordination polymers (CPs), namely, <b>1-Ag</b> and <b>2-Ag</b>, have been synthesized by the reaction of Co-based metalloligands offering appended pyridyl groups. X-ray diffraction analyses revealed three-dimensional (3D) architectures for both <b>1-Ag</b> and <b>2-Ag</b> due to the coordination of Ag­(I) ions to that of appended pyridyl groups. In the case of <b>1-Ag</b>, transition from a two-dimensional network to the final 3D network was manifested due to the presence of argentophilic interactions. Both CPs illustrated noteworthy structural differences and interesting topologies as a result of coordination of Ag­(I) ions to the metalloligands. Both CPs acted as the heterogeneous catalysts for A³-coupling reactions of aldehydes, secondary amines, and alkynes. Recyclability experiments substantiated the stable nature of CPs in promoting the A³-coupling reactions heterogeneously