A Schiff base based on triphenylamine and thiophene moieties as a fluorescent sensor for Cr (III) ions: Synthesis, characterization and fluorescent applications

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dc.authoridKaya, İsmet / 0000-0002-9813-2962
dc.authoridKolcu, Feyza / 0000-0002-2004-8859
dc.authoridErdener, Diğdem / 0000-0002-4226-0455
dc.contributor.authorKolcu, Feyza
dc.contributor.authorErdener, Diğdem
dc.contributor.authorKaya, İsmet
dc.date.accessioned2025-01-27T20:45:29Z
dc.date.available2025-01-27T20:45:29Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA Schiff base fluorescent sensor was designed for selective detection of Cr3+ ions in aqueous solution. The procedure for the study was fulfilled in three steps which comprised the synthesis of 4-nitro-triphenylamine (TPA-NO2), 4-amino-triphenylamine (TPA-NH2) and Schiff base (TPA-Th) using 2,2′-bithiophene-5-carboxaldehyde, respectively. Structural characterization of the purely synthesized compounds was acquired by using UV–Vis, FT-IR, 1H NMR and 13C NMR analyses. Their electrochemical, thermal, and the optical sensor properties for metal ions were enlightened by cyclic voltammetry (CV), thermal-TG-DTA and photoluminescence (PL) techniques, respectively. Non-fluorescent TPA-Th displayed a fluorescence enhancement after chelation with Cr3+ ions with high selectivity and overall emission change of 59-fold at an excitation wavelength of 320 nm. The limit of detection (LOD) value was as low as 1.5 × 10−6 M for Cr3+ ions, accompanied by an association constant (Ka) of 2.8 × 104 M−1. TPA-Th was beneficial for the design and development of metal-complexed fluorescent sensor and light emitting devices.
dc.identifier.doi10.1016/j.ica.2020.119676
dc.identifier.issn0020-1693
dc.identifier.issn1873-3255
dc.identifier.scopus2-s2.0-85083523831
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.ica.2020.119676
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24590
dc.identifier.volume509
dc.identifier.wosWOS:000541486700011
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofInorganica Chimica Acta
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectMetal-Organic Frameworks
dc.subjectTurn-On
dc.subjectSelective Detection
dc.subjectLiquid-Chromatography
dc.subjectMolecular Probe
dc.subjectWater Samples
dc.subjectChemosensor
dc.subjectComplexes
dc.subjectPolymer
dc.subjectAl3+
dc.titleA Schiff base based on triphenylamine and thiophene moieties as a fluorescent sensor for Cr (III) ions: Synthesis, characterization and fluorescent applications
dc.typeArticle

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