Structures of Metal–Organic Frameworks with\nRod Secondary Building Units

Abstract

Rod MOFs are metal–organic\nframeworks in which the metal-containing secondary building units\nconsist of infinite rods of linked metal-centered polyhedra. For such\nmaterials, we identify the points of extension, often atoms, which\ndefine the interface between the organic and inorganic components\nof the structure. The pattern of points of extension defines a shape\nsuch as a helix, ladder, helical ribbon, or cylinder tiling. The linkage\nof these shapes into a three-dimensional framework in turn defines\na net characteristic of the original structure. Some scores of rod\nMOF structures are illustrated and deconstructed into their underlying\nnets in this way. Crystallographic data for all nets in their maximum\nsymmetry embeddings are provided.