Infinite Secondary Building Units and Forbidden Catenation in Metal-Organic Frameworks The National Science Foundation support to M.O'K. (DMR- 9804817) and O.M.Y. (DMR-9980469) is gratefully acknowledged.

Abstract

Interlinked Zn-O-C infinite secondary building units (SBUs) form the basis of the novel metal-organic frameworks (MOFs) [Zn3(OH2)(X)2]⋅4 DEF⋅2 H2O (MOF-69A: X=4,4′-biphenyldicarboxylate; MOF-69B: X=2,6-naphthalenedicarboxylate; DEF=N,N′-diethylformamide). The nature of the infinite SBUs results in frameworks (structure of MOF-69A depicted) wherein catenation is forbidden.