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Post synthetic exchange enables orthogonal click chemistry in a metal organic framework
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström. (Syntetisk molekylär kemi)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström. (Syntetisk molekylär kemi)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström. (Syntetisk molekylär kemi)ORCID iD: 0000-0002-1691-729X
2019 (English)In: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, Vol. 48, no 1, p. 45-49Article in journal (Refereed) Published
Abstract [en]

Biphenyl-4,4'-dicarboxylic acid derivatives containing either azide or acetylene functional groups were inserted into UiO-67 metal organic frameworks (MOFs) via post synthetic linker exchange. Sequential and orthogonal click reactions could be performed on these modified MOFs by incubating the crystals with small molecule substrates bearing azide or acetylene groups in the presence of a copper catalyst. H-1 NMR of digested MOF samples showed that up to 50% of the incorporated linkers could be converted to their "clicked" triazole products. Powder X-ray diffraction confirmed that the UiO-67 structure was maintained throughout all transformations. The click reaction efficiency is discussed in context of MOF crystallite size and pore size. As the incorporation of clicked linkers could be controlled by post synthetic exchange, this work introduces a powerful method of quickly introducing orthogonal modifications into known MOF architectures.

Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY , 2019. Vol. 48, no 1, p. 45-49
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-372868DOI: 10.1039/c8dt04563aISI: 000453681400006PubMedID: 30516766OAI: oai:DiVA.org:uu-372868DiVA, id: diva2:1277305
Funder
EU, European Research Council, ERC-CoG2015-681895_MOFcatSwedish Energy AgencyAvailable from: 2019-01-10 Created: 2019-01-10 Last updated: 2019-01-10Bibliographically approved

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McCarthy, Brian D.Ott, Sascha

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