KF and CsF Recognition and Extraction by a Calix[4]crown-5 Strapped Calix[4]pyrrole Multitopic Receptor
DC Field | Value | Language |
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dc.contributor.author | Kim, Sung Kuk | - |
dc.contributor.author | Lynch, Vincent M. | - |
dc.contributor.author | Young, Neil J. | - |
dc.contributor.author | Hay, Benjamin P. | - |
dc.contributor.author | Lee, Chang-Hee | - |
dc.contributor.author | Kim, Jong Seung | - |
dc.contributor.author | Moyer, Bruce A. | - |
dc.contributor.author | Sessler, Jonathan L. | - |
dc.date.accessioned | 2021-09-06T11:53:41Z | - |
dc.date.available | 2021-09-06T11:53:41Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2012-12-26 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/106635 | - |
dc.description.abstract | On the basis of H-1 NMR spectroscopic analyses and single crystal X-ray crystal structural data, the ion-pair receptor 1, bearing a calix[4]pyrrole for anion binding and calix[4]arene crown-5 for cation recognition, was found to act as a receptor for both CsF and KF ion-pairs. Both substrates are bound strongly but via different binding modes and with different complexation dynamics. Specifically, exposure to KF in 10% CD3OD in CDCl3 leads first to complexation of the K+ cation by the calix[4]arene crown-5 moiety. As the relative concentration of KF increases, then the calix[4]pyrrole subunit binds the F- anion. Once bound, the K+ cation and the F- anion give rise to a stable 1:1 ion-pair complex that generally precipitates from solution. In contrast to what is seen with KF, the CsF ion-pair interacts with receptor 1 in two different modes in 10% CD3OD in CDCl3. In the first of these, the Cs+ cation interacts with the calix[4]arene crown-5 ring weakly. In the second interaction mode, which is thermodynamically more stable, the Cs+ cation and the counteranion, F-, are simultaneously bound to the receptor framework. Further proof that system 1 acts as a viable ion-pair receptor came from the finding that receptor 1 could extract KF from an aqueous phase into nitrobenzene, overcoming the high hydration energies of the K+ and F- ions. It was more effective in this regard than a 1:1 mixture of the constituent cation and anion receptors (4 and 5). | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | ION-PAIR RECEPTOR | - |
dc.subject | CESIUM CATION RECOGNITION | - |
dc.subject | MACROBICYCLIC RECEPTOR | - |
dc.subject | MOLECULAR RECOGNITION | - |
dc.subject | CROWN-ETHERS | - |
dc.subject | ANION | - |
dc.subject | TRANSPORT | - |
dc.subject | MEMBRANE | - |
dc.subject | CHANNELS | - |
dc.subject | BINDING | - |
dc.title | KF and CsF Recognition and Extraction by a Calix[4]crown-5 Strapped Calix[4]pyrrole Multitopic Receptor | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Jong Seung | - |
dc.identifier.doi | 10.1021/ja310673p | - |
dc.identifier.scopusid | 2-s2.0-84871555728 | - |
dc.identifier.wosid | 000313154200041 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.134, no.51, pp.20837 - 20843 | - |
dc.relation.isPartOf | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 134 | - |
dc.citation.number | 51 | - |
dc.citation.startPage | 20837 | - |
dc.citation.endPage | 20843 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | ION-PAIR RECEPTOR | - |
dc.subject.keywordPlus | CESIUM CATION RECOGNITION | - |
dc.subject.keywordPlus | MACROBICYCLIC RECEPTOR | - |
dc.subject.keywordPlus | MOLECULAR RECOGNITION | - |
dc.subject.keywordPlus | CROWN-ETHERS | - |
dc.subject.keywordPlus | ANION | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | MEMBRANE | - |
dc.subject.keywordPlus | CHANNELS | - |
dc.subject.keywordPlus | BINDING | - |
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