Formation of a Unique 1:2 Calcium-Calixquinone Complex in Aqueous Media
DC Field | Value | Language |
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dc.contributor.author | Kang, Sun Kil | - |
dc.contributor.author | Lee, One-Sun | - |
dc.contributor.author | Chang, Suk-Kyu | - |
dc.contributor.author | Chung, Doo Soo | - |
dc.contributor.author | Kim, Hasuck | - |
dc.contributor.author | Chung, Taek Dong | - |
dc.date.available | 2019-05-29T13:38:23Z | - |
dc.date.issued | 2011-03 | - |
dc.identifier.issn | 1229-5949 | - |
dc.identifier.issn | 1229-5949 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/21669 | - |
dc.description.abstract | We report the complexation behavior of calix[4]arenemonoquinone-triacid (CTAQ), which is an electroactive and water-soluble receptor for calcium ion. UV-visible and NMR spectroscopic studies revealed that CTAQ in aqueous media forms 1:2 as well as 1:1 (metal ion:CTAQ) stoichiometric complexes with Ca2+, Sr2+, and Ba2+ ions. The nonlinear fitting of titration curves based on UV-visible absorption spectra showed that the binding constants of CTAQ for Ca2+ ion are 4 (+/- 2) x 10(6) M-1 for 1:1 and 1.4 (+/- 0.5) x 10(11) M-2 for 1:2 complex. NMR conformational studies and the titration curves corroborate that the Ca2+:CTAQ complex in aqueous solution is not present in the form of merely 1:1 one, being consistent with UV-visible spectrophotometric results. The Monte Carlo simulation supports the presence of a stable conformer of 1:2 complexes in which a Ca2+ ion is interposed between two CTAQs at the global minimum. This is the first model of 1:2 stoichiometric complex of calix[4]arene and alkaline earth ions in aqueous media. | - |
dc.format.extent | 7 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Formation of a Unique 1:2 Calcium-Calixquinone Complex in Aqueous Media | - |
dc.type | Article | - |
dc.identifier.doi | 10.5012/bkcs.2011.32.3.793 | - |
dc.identifier.bibliographicCitation | BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.32, no.3, pp 793 - 799 | - |
dc.identifier.kciid | ART001536791 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000288832700007 | - |
dc.identifier.scopusid | 2-s2.0-79953248191 | - |
dc.citation.endPage | 799 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 793 | - |
dc.citation.title | BULLETIN OF THE KOREAN CHEMICAL SOCIETY | - |
dc.citation.volume | 32 | - |
dc.type.docType | Article | - |
dc.publisher.location | 대한민국 | - |
dc.subject.keywordAuthor | Calix[4]arenemonoquinone-triacid | - |
dc.subject.keywordAuthor | Calcium ion | - |
dc.subject.keywordAuthor | NMR titration | - |
dc.subject.keywordAuthor | Binding constant | - |
dc.subject.keywordAuthor | Monte Carlo simulation | - |
dc.subject.keywordPlus | LUMINESCENCE PROPERTIES | - |
dc.subject.keywordPlus | MOLECULAR RECOGNITION | - |
dc.subject.keywordPlus | CRYSTAL-STRUCTURES | - |
dc.subject.keywordPlus | METAL-CATIONS | - |
dc.subject.keywordPlus | LOWER RIM | - |
dc.subject.keywordPlus | BINDING | - |
dc.subject.keywordPlus | DERIVATIVES | - |
dc.subject.keywordPlus | SELECTIVITY | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | DESIGN | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
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