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A novel sensing capabilities and structural modification from thiourea to urea derivative by Hg(ClO<sub>4</sub>)<sub>2</sub>: Selective dual chemodosimeter for Hg<SUP>2+</SUP> and F<SUP>-</SUP> ions
DC Field | Value | Language |
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dc.contributor.author | Lee, Jae-Young | - |
dc.contributor.author | Rao, Boddu Ananda | - |
dc.contributor.author | Hwang, Ji-Yong | - |
dc.contributor.author | Son, Young-A. | - |
dc.date.accessioned | 2024-04-26T00:27:06Z | - |
dc.date.available | 2024-04-26T00:27:06Z | - |
dc.date.created | 2024-04-25 | - |
dc.date.issued | 2015-12 | - |
dc.identifier.citation | SENSORS AND ACTUATORS B-CHEMICAL, Vol.220, pp.1070-1085 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://hdl.handle.net/10371/199517 | - |
dc.description.abstract | A new rhodamine-6G phenylthiourea derivative (L1) condensed product was developed as a fluorescent and colorimetric dual chemosensor in acetonitrile with more selective towards Hg2+ and F- ions. Hg2+-promoted spirolactam ring opening of the rhodamine moiety induced urea formation through the diphenylcarbodiimide intermediate from the thiourea moiety. It demonstrates high selectivity for sensing Hg2+ with about 700-fold enhancement in fluorescence emission intensity and micromolar sensitivity (limit of detection 4.52 x 10(-7)M) in comparison with other various metal ions. Hg2+ ions coordinated reversibly to Ll, forming a 1:2 metal-ligand complex. The thiourea moiety provided an anion binding site, and the rhodamine system was responsible for fluorescence. In turn, the chemosensor Ll acted as a selective chemosensor toward F- among various anions. Thus, L1 associated with F- with 1:1 stoichiometry. A recognition mechanism based on the binding modes of Hg-2(+) and F- ions were proved by the analytical techniques like UV-vis, changes in fluorescence, H-1 NMR, FT-IR, ESI-mass and HRMS. In addition, this chemosensor exhibited highly selective and sensitive recognition of azide (N-3(-)) anions upon the addition of Hg2+ with a color change back to colorless in the same solution. (C) 2015 Elsevier B.V. All rights reserved. | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | A novel sensing capabilities and structural modification from thiourea to urea derivative by Hg(ClO4)2: Selective dual chemodosimeter for Hg2+ and F- ions | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.snb.2015.06.041 | - |
dc.citation.journaltitle | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.identifier.wosid | 000361249100141 | - |
dc.identifier.scopusid | 2-s2.0-84933531866 | - |
dc.citation.endpage | 1085 | - |
dc.citation.startpage | 1070 | - |
dc.citation.volume | 220 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Lee, Jae-Young | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | TURN-ON FLUORESCENT | - |
dc.subject.keywordPlus | FLUORIDE IONS | - |
dc.subject.keywordPlus | COLORIMETRIC CHEMOSENSORS | - |
dc.subject.keywordPlus | OPTICAL-PROPERTIES | - |
dc.subject.keywordPlus | AQUEOUS-MEDIA | - |
dc.subject.keywordPlus | MERCURY IONS | - |
dc.subject.keywordPlus | LIVING CELLS | - |
dc.subject.keywordPlus | N-ACYLATION | - |
dc.subject.keywordPlus | SENSOR | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordAuthor | Carbodiimide | - |
dc.subject.keywordAuthor | Rhodamine 6G | - |
dc.subject.keywordAuthor | Mercury sensing | - |
dc.subject.keywordAuthor | Fluoride anion | - |
dc.subject.keywordAuthor | Azide anion | - |
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