title: Interwoven metal-organic framework on a periodic minimal surface with extra-large pores.
abstract: Interpenetration (catenation) has long been considered a major impediment in the achievement of stable and porous crystalline structures. A strategy for the design of highly porous and structurally stable networks makes use of metal-organic building blocks that can be assembled on a triply periodic P-minimal geometric surface to produce structures that are interpenetrating-more accurately considered as interwoven. We used 4,4',4"-benzene-1,3,5-triyl-tribenzoic acid (H(3)BTB), copper(II) nitrate, and N,N'-dimethylformamide (DMF) to prepare Cu(3)(BTB)(2)(H(2)O)(3).(DMF)(9)(H(2)O)(2) (MOF-14), whose structure reveals a pair of interwoven metal-organic frameworks that are mutually reinforced. The structure contains remarkably large pores, 16.4 angstroms in diameter, in which voluminous amounts of gases and organic solvents can be reversibly sorbed.
authors.affiliation: Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
authors.forename: B
authors.initials: B
authors.lastname: Chen
authors.forename: M
authors.initials: M
authors.lastname: Eddaoudi
authors.forename: S T
authors.initials: ST
authors.lastname: Hyde
authors.forename: M
authors.initials: M
authors.lastname: O'Keeffe
authors.forename: O M
authors.initials: OM
authors.lastname: Yaghi