An Unprecedented 3D Self-catenated Four-coordinated Dense Net of Silver-Organic Framework

摘要

The rational design and synthesis of novel coordination polymers (CPs) or metal-organic frameworks (MOFs) is of great interest in modern inorganic chemistry not only for their potential applications as functional materials in fields such as gas storage, luminescence, catalysis, ion exchange, and so on, but also for their intriguing variety of topologies. In particular, topology focuses on the network connectivity generated via the reduction of periodic nets into node-and-linker/vertex-and-edge representations, which helps greatly the understanding of structural complexity, variety and entanglements of the coordination architectures. It is no doubt that the discovery of artificial MOFs with predicted subnet topologies is of great significance in understanding supernet-subnet relations based on the knowledge of the chemical properties of the components (metals and ligands). Therefore, tiny variation of nodes may generate huge differences on topologies since the network topology is reflected by the symmetry of nodes and nature of edges.