| Abstract
| - The principal structure possibilities for packing infinite rod-shaped building blocks are described.Some basic nets derived from linking simple rods (helices and ladders) are then enumerated. Wedemonstrate the usefulness of the concept of rod secondary building units in the design and synthesis ofmetal−organic frameworks (MOFs). Accordingly, we present the preparation, characterization, and crystalstructures of 14 new MOFs (named MOF-69A−C and MOF-70−80) of 12 different structure types, belongingto rod packing motifs, and show how their structures are related to basic nets. The MOFs reported hereinare of polytopic carboxylates and contain one of Zn, Pb, Co, Cd, Mn, or Tb. The inclusion properties of themost open members are presented as evidence that MOF structures with rod building blocks can indeedbe designed to have permanent porosity and rigid architectures.
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