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المؤلفElsafy A.G.
المؤلفAl-Easa H.S.
المؤلفHijji Y.M.
تاريخ الإتاحة2020-03-18T08:10:10Z
تاريخ النشر2018
اسم المنشورSensors (Switzerland)
المصدرScopus
الرقم المعياري الدولي للكتاب14248220
معرّف المصادر الموحدhttp://dx.doi.org/10.3390/s18072219
معرّف المصادر الموحدhttp://hdl.handle.net/10576/13350
الملخص(E)-2-((benzo[d]thiazol-2-ylimino)methyl)-4-nitrophenol 1 and (E)-2-(((6-methoxybenzo[d]thiazol-2-yl)imino)methyl)-4-nitrophenol 2 were synthesized efficiently under microwave conditions. The structures were confirmed using IR,1 H NMR, and13 C NMR. UV-vis. Fluorescence investigations demonstrated that 1 and 2 are sensitive and selective sensors for detection of cyanide over all other anions SCN?, AcO?, N3 ?, H2 PO4 ?, H2 AsO4 ?, F?, Cl?, Br?, and I? in aqueous media. Cyanide induces colorimetric change from pale yellow to dark yellow and from transparent to pale yellow for 1 and 2, respectively. It enhances the absorption at wavelengths 385 nm and 425 nm of 1 and 385 nm and 435 nm of 2. Acidic anions H2 PO4 ? and H2 AsO4 ? displayed significant interference with the interaction of cyanide and sensors 1 and 2. Sensor 1 has lower detection limit (LDL) 1 ? 10?6 M, while 2 has LDL 1.35 ? 10?6 M. ? 2018 by the authors. Licensee MDPI, Basel, Switzerland.
راعي المشروعThis publication was made possible by a research award [NPRP7-495-1-094] from the Qatar National Research Fund (a member of The Qatar Foundation). The contents herein are solely the responsibility of the authors.
اللغةen
الناشرMDPI AG
الموضوع2-aminobenzothiazoles
Cyanide
Fluorescence
Microwave assisted synthesis
Sensors
العنوانSubstituted 2-aminobenzothiazoles salicylidenes synthesis and characterization as cyanide sensors in aqueous medium
النوعArticle
رقم العدد7
رقم المجلد18
dc.accessType Abstract Only


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