An isostructural series of zirconium-based metal-organic frameworks (ZrMOFs) with UiO-66-type structure (including three previously unreported materials) have been successfully synthesized from combination of mono- and di-substituted terephthalic acids and ZrCl4. Sterically demanding pendant groups with Lewis basic sites are found to impart significant defects within the crystal structure while simultaneously stabilizing the MOFs toward water, acid, and base, permitting access to materials with disordered mesopores. Furthermore, comparably sized pendant group with no Lewis basic sites results in formation of amorphous material. The materials have also been investigated as sorbents for removal of trace heavy metals from acidic aqueous solutions, with thiol- and sulfide-containing materials exhibiting signfiicant potential in removal of Hg2+ and Ag+.

Stabilizing defects in metal-organic frameworks: Pendant Lewis basic sites as capping agents in UiO-66-type MOFs toward highly stable and defective porous materials

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.