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Type: Journal article
Title: Supramolecular anion recognition in water: synthesis of hydrogen-bonded supramolecular frameworks
Author: Morshedi, M.
Thomas, M.
Tarzia, A.
Doonan, C.
White, N.
Citation: Chemical Science, 2017; 8(4):3019-3025
Publisher: Royal Society of Chemistry
Issue Date: 2017
ISSN: 2041-6520
Statement of
Mahbod Morshedi, Michael Thomas, Andrew Tarzia, Christian J. Doonan and Nicholas G. White
Abstract: The 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.
Rights: This 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.
RMID: 0030067611
DOI: 10.1039/C7SC00201G
Appears in Collections:Chemistry and Physics publications

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