A High-connected Cobalt(II) Pyromellitate MOF Displaying An Uncommon Decadentate Coordination Mode

摘要

Metal-organic frameworks (MOFs) from organic ligands and transition metals have become a field of quick growth in supramolecular and material chemistry due to their intriguing structural diversity and potential applications in several aspects such as gas adsorption/separation, catalysis, optics, magnetism, and molecular recognition.1 In particular, topology focuses on the coordination network connectivity generated via the reduction of periodic nets into node-and linker/ vertex-and-edge representations, which helps greatly the understanding of the significance of MOFs for theoretical crystal chemistry consists in close relations between their composition, physical properties and topology of the corresponding atomic net. To date, thousands of new MOFs have been synthesized. In these reported coordination networks, the majority are commonly uninodal- and low connected (< 7) nodes, trinodal networks containing highly connected nodes such as (3,4,6)-, (3,4,7)-, (3,6,10)-, (3,8,10)-, (4,4,7)-and (4,8,16)-connected MOFs are relatively rare.