Supramolecular anion recognition in water: synthesis of hydrogen-bonded supramolecular frameworks

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dc.contributor.authorMorshedi, M.
dc.contributor.authorThomas, M.
dc.contributor.authorTarzia, A.
dc.contributor.authorDoonan, C.
dc.contributor.authorWhite, N.
dc.date.issued2017
dc.description.abstractThe interaction of tetratopic amidinium-containing receptors with terephthalate anions leads to porous framework materials assembled through charge-assisted hydrogen bonds. The frameworks form in good yield within minutes in water at room temperature, but no framework material is obtained if other anions (Cl-, Br-, NO3-, SO42- or isophthalate2-) are used in place of terephthalate. Two forms of the framework can be prepared: one with a connected pore network, and a more dense phase with discrete voids. We demonstrate that these are the kinetic and thermodynamic products, respectively. Either framework can be prepared independently and can be converted to the other form in response to stimuli. Furthermore, the frameworks can be controllably disassembled and reassembled in response to acid/base triggers suggesting that this new class of materials may have applications in the selective encapsulation and release of guests.
dc.description.statementofresponsibilityMahbod Morshedi, Michael Thomas, Andrew Tarzia, Christian J. Doonan and Nicholas G. White
dc.identifier.citationChemical Science, 2017; 8(4):3019-3025
dc.identifier.doi10.1039/C7SC00201G
dc.identifier.issn2041-6520
dc.identifier.issn2041-6539
dc.identifier.urihttp://hdl.handle.net/2440/105259
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.relation.grantARC
dc.rightsThis journal is © The Royal Society of Chemistry 2017. Open Access Article. This Open Access Article is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported Licence.
dc.source.urihttps://doi.org/10.1039/c7sc00201g
dc.titleSupramolecular anion recognition in water: synthesis of hydrogen-bonded supramolecular frameworks
dc.typeJournal article
pubs.publication-statusPublished

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