Charge “mis-matched” hydrogen bonded frameworks for cation exchange and dye sorption
Date
2023
Authors
Muang-Non, P.
Markwell-Heys, A.W.
Doonan, C.J.
White, N.G.
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Journal article
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Chemical Communications, 2023; 59(27):4059-4062
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Phonlakrit Muang-Non, Adrian W. Markwell-Heys, Christian J. Doonan and Nicholas G. White
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Abstract
Anionic hydrogen bonded frameworks were synthesised from di or tetra-amidinium hydrogen bond donor components and a charge ‘‘mis-matched’’ tecton possessing a 5 charge but only four hydrogen bond accepting groups. The net negative charge on the framework skeletons necessitates the presence of a cation in the framework channel. In one of the frameworks, the initially incorporated organic cation was rapidly displaced by smaller inorganic cations, or the cationic dye methylene blue. This facilitated the effective and selective removal of this dye from water.
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© The Royal Society of Chemistry 2023