Crystal Structures and Physical Properties of Ag(I) Coordination Polymers with Unsymmetrical Dipyridyl Ligand

摘要

During last two decades, silver coordination polymers based on dipyridyl type ligands have attracted particular interest because of the various intriguing architectures caused by a variety of coordination geometry of Ag(I) ion as well as their potential applications as functional materials. In the development of Ag(I) coordination polymers with fascinating structures, especially, numerous symmetrical dipyridyl ligands with nitrogen donor atoms in the same position of two terminal pyridines are employed due to their easy synthesis. However, despite the rapid growth in the Ag(I) coordination chemistry based on the symmetrical dipyridyl ligands, the investigation using unsymmetrical dipyridyl ligands with nitrogen donor atoms in the different position of two terminal pyridines still remains lacking. Recently, Kitagawa and Gao groups reported helical Ag(I) coordination polymers involving unsymmetrical dipyridyl ligands.