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Recognition and Extraction of Sodium Chloride by a Squaramide-Based Ion Pair Receptor

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dc.abstract.enWe synthesized an ion pair receptor 1 consisting of a crown ether cation binding site and a squaramide anion binding domain and compared its binding properties to those of its analogous urea counterpart 2. We studied their salt binding properties using spectrophotometric and spectroscopic measurements in an acetonitrile solution and in acetonitrile/water mixtures. Apart from carboxylate anions, all of the anions tested were found to associate with receptor 1 and 2 more strongly in the presence of sodium cations. A homotopic anion receptor 3, lacking a crown ether unit, was unable to bind sodium salt more strongly than tetrabutylammonium salts. Solution and solid-state X-ray measurements revealed strong sodium chloride coordination to receptor 1, which is able to bind this salt even in the presence of 10\% water. In contrast to the urea-based ion pair receptor 2 or anion receptor 3, ditopic receptor 1 is capable of extracting sodium chloride from aqueous media to the organic phase, as was evidenced unambiguously by 1H nuclear magnetic resonance, mass spectrometry, and atomic absorption spectroscopy analyses.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorJagleniec, Damian
dc.contributor.authorSiennicka, Sylwia
dc.contributor.authorKarbarz, Marcin
dc.contributor.authorDobrzycki, Łukasz
dc.contributor.authorRomański, Jan
dc.date.accessioned2024-01-25T18:57:51Z
dc.date.available2024-01-25T18:57:51Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.number20
dc.description.volume57
dc.identifier.doi10.1021/ACS.INORGCHEM.8B02163
dc.identifier.issn0020-1669
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/118033
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofInorganic Chemistry
dc.relation.pages12941–12952
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleRecognition and Extraction of Sodium Chloride by a Squaramide-Based Ion Pair Receptor
dc.typeJournalArticle
dspace.entity.typePublication