Double-walled pyr topology networks from a novel fluoride-bridged heptanuclear metal cluster

Two isostructural metal-organic materials, ( = 2,4,6-tris(4-pyridyl)pyridine; M = Co, Ni), that exhibit binodal 3,6-connected network topology have been prepared and characterized. are based upon a novel M F cluster that possesses 12 connection points but, because of double cross-linking by 3-connected ligands, it functions as a 6-connected supermolecular building block (SBB).