“…[4][5][6] The most commonly used strategy for designing such materials relies on the utilization of multidentate N-or O-donor ligands which have the capacity to bridge between metal centers to form polymeric structures. For example, 4,4'-bipyridine (4,4'-bpy) is an excellent ligand and a number of one-, twoand three-dimensional infinite metal-4,4'-bpy frameworks have been generated.…”