The semi-flexible ligand, 5,5'-bipyridine, would not only function as a potential bridging linker to connect the metal ions into a multidimensional structure but would also mediates magnetic interactions effectively between metal ions through the bridging pyrimidyl group. In addition, the sufficient flexibility and adaptability of the ligand can be achieved by twisting its two pyrimidyl rings into various coordination geometries needed and resulting diverse frameworks. In this report, we describe the self-assemblies, crystal structures and magnetic properties of azide-based magnetic coordination polymers with 5,5'-bipyridine.