Sensing behaviours to Fe3+, Co2+ ions and cyanide detection performance of 4,5-diazafluorene-based colorimetric chemosensors

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dc.contributor.authorMurat Saltan G.
dc.date.accessioned2024-07-22T08:02:18Z
dc.date.available2024-07-22T08:02:18Z
dc.date.issued2023
dc.description.abstractThree novel colorimetric chemosensors were synthesized by Schiff base condensation of 4,5-diazafluoren-9-one with different hydrazine derivatives, which included benzothiazole (DAF-BT), quinoline (DAF-QU) and phthalazine groups (DAF-PHT). Structural characterization was supported by Fourier transform infrared spectroscopy, and nuclear magnetic spectroscopy (1H-NMR and 13C-NMR) analyses. Photophysical properties of colorimetric chemosensors synthesized in the study were investigated systematically in different solvents of polarities such as chloroform, dichloromethane, acetonitrile, and then their sensing probe activities mainly with Fe+3 and Co+2 ions were evaluated using UV–vis absorption and fluorescence emission spectroscopy. DAF-PHT, DAF-QU and DAF-BT chemosensors absorption maxima between 424 and 492 nm were associated with the intramolecular charge transfer transitions, and metal sensing abilities were also supported by the formation of metal-to-ligand charge transfer transitions. One of the studied complex, sensor DAF-PHT/Co2+, showed highly selective to CN− anion in acetonitrile solution and colour changes could be detected with the naked eye. Graphical abstract: [Figure not available: see fulltext.]. © 2023, Indian Academy of Sciences.
dc.identifier.DOI-ID10.1007/s12034-023-03016-z
dc.identifier.issn02504707
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11774
dc.language.isoEnglish
dc.publisherSpringer
dc.subjectAcetonitrile
dc.subjectCharge transfer
dc.subjectColor
dc.subjectColorimetry
dc.subjectDichloromethane
dc.subjectEmission spectroscopy
dc.subjectFourier transform infrared spectroscopy
dc.subjectIons
dc.subjectNuclear magnetic resonance
dc.subjectNuclear magnetic resonance spectroscopy
dc.subjectOrganic solvents
dc.subject4,5-diazafluorene
dc.subjectChemo-selectivity
dc.subjectCo2+ detection
dc.subjectColorimetric chemosensor
dc.subjectCyanide detection
dc.subjectFe 3+
dc.subjectFe3+ detection
dc.subjectIon detection
dc.subjectPhthalazines
dc.subjectSynthesised
dc.subjectCyanides
dc.titleSensing behaviours to Fe3+, Co2+ ions and cyanide detection performance of 4,5-diazafluorene-based colorimetric chemosensors
dc.typeArticle

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