A novel turn-on fluorometric reporter-spacer-receptor chemosensor based on calix[4]arene scaffold for detection of cyanate anion

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dc.contributor.authorBozkurt, Selahattin
dc.contributor.authorHalay, Erkan
dc.contributor.authorDurmaz, Mustafa
dc.contributor.authorTopkafa, Mustafa
dc.contributor.authorCeylan, Ozgur
dc.date.accessioned2024-02-23T12:16:52Z
dc.date.available2024-02-23T12:16:52Z
dc.date.issued2021
dc.departmentNEÜen_US
dc.description.abstractHerein, a novel calix[4]arene compound, which was modified by the 2-(2-aminophenyl)benzothiazole fragment with cyanate recognition function was designed based on the reporter-spacer-receptor sensing system. The construction was done via two-step reaction, and the desired sensor 4 was characterized by FT-IR, H-1-, C-13-NMR, and fluorescence spectroscopy along with HRMS data. The sensor candidate showed distinct fluorometric cyanate detection by means of reporter feature of selected benzothiazole constituent. In the presence of cyanate, the sensor gave a turn-on-type fluorescence at 482 nm with a large stokes' shift. Furthermore, it was observed that our fluoroionophore 4 is highly selective toward cyanate over remaining anions such as sulfate, phosphate, fluoride, chloride, bromide, iodide, chlorate, and nitrate in 10% aqueous solution of DMSO. The 1:2 stoichiometric ratio of the 4-cyanate complex was given the best fit with Job's plot based on the titration data. The association constant (K-a) of sensor 4 with cyanate is determined to be 1.64 x 10(5) M-2. The obtained limit of detection (LOD) value for cyanate anion, 312 nM, clearly revealed the remarkable sensitivity of the chemosensor 4. This supramolecular method provides a highly adaptive technique for the detection of cyanate and so cyanide ions by current international standard methods.en_US
dc.description.sponsorshipScientific and Technical Research Council of Turkey [114Z587]; Usak University Research Foundation [2018/SB002]en_US
dc.description.sponsorshipScientific and Technical Research Council of Turkey, Grant/Award Number: 114Z587; Usak University Research Foundation, Grant/Award Number: 2018/SB002en_US
dc.identifier.doi10.1002/jhet.4238
dc.identifier.endpage1088en_US
dc.identifier.issn0022-152X
dc.identifier.issn1943-5193
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85101486121en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage1079en_US
dc.identifier.urihttps://doi.org/10.1002/jhet.4238
dc.identifier.urihttps://hdl.handle.net/20.500.12452/10586
dc.identifier.volume58en_US
dc.identifier.wosWOS:000618230700001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofJournal Of Heterocyclic Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject[Keyword Not Available]en_US
dc.titleA novel turn-on fluorometric reporter-spacer-receptor chemosensor based on calix[4]arene scaffold for detection of cyanate anionen_US
dc.typeArticleen_US

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