Studies on UV-vis and fluorescence changements in Co 2+ and Cu 2+ recognition by a new benzimidazole-benzothiadiazole derivative

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dc.contributor.authorÇimen O.
dc.contributor.authorDin?alp H.
dc.contributor.authorVarlikli C.
dc.date.accessioned2019-10-27T08:21:10Z
dc.date.available2019-10-27T08:21:10Z
dc.date.issued2015
dc.departmentEge Üniversitesien_US
dc.description.abstractA novel fluorescent sensor (BI-T) was synthesized by the coupling reaction of 2-(2-hydroxyphenyl)-7-phenyl-1H-benzimidazole-4-boronic acid with 4,7-dibromo-2,1,3-benzothiadiazole via Pd-catalysed Suzuki reaction. Its photophysical properties were investigated systematically in different solvents to analyze its potential usage in the fluorescence detection for transition metal ions such as Co 2+ and Cu 2+ in solutions. In benzonitrile solution, new absorption bands for complex structure of BI-T at 470 nm and 580 nm were appeared in the presence of Co 2+ ions with respect to the uncomplexed form of the sensor absorption. BI-T sensor is usable for both Co 2+ and Cu 2+ sensation through "on-off" fluorescence change in benzonitrile. In ethanol solution, BI-T shows similar optical performances to detect Co 2+ and Cu 2+ ions. BI-T detects trace amount of transition metals in ethanol with estimated limit of detection around 4.1 × 10 -7 M and 5.5 × 10 -7 M for Co 2+ and Cu 2+ ions, respectively. Possible formation of metal-to-ligand charge transfer (MLCT) state during the titration with Co 2+ ion is supported by the detection of long-lived species in the excited state. © 2014 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipCelal Bayar Üniversitesien_US
dc.description.sponsorshipFinancial support for this work was provided by the Research Council of Celal Bayar, Manisa, Turkey with the project number of 2011-056 . Oğuzhan Çimen was born in 1986 in Muğla, Turkey, and received his B.Sc. from the Chemistry Department of Faculty of Arts and Science, Celal Bayar University, Turkey in 2010. He received his M.Sc. degree from the same University in 2012 under the supervision of Associate Professor Dr. Haluk Dinçalp, on a thesis entitled “ Synthesis of New Benzimidazole Derivatives Designed for the Production of White Organic Light Emitting Diode” . He is currently working in DYO dye company as a researcher in R&D department. Haluk Dinçalp is an Associate Professor of Chemistry Department of Faculty of Arts and Science, Celal Bayar University, Manisa, Turkey. He received his Ph.D. degree from the Chemistry Department of Institute of Natural Science, Ege University, Izmir in 2003 under the direction of Professor Sıddık İçli, on a thesis entitled “ Solar Photooxidation Reactions ”. His current interests involve synthesis and characterization of photosensitizers, bulk heterojunction solar cells, dye sensitized solar cells and photosensitizer/DNA G-Quadruplex interactions. Canan Varlıklı is an Associate Professor of Solar Energy Institute, Ege University, Izmir, Turkey. She received her Ph.D. degree from the Chemistry Department of Institute of Natural Science, Ege University in 2003 under the direction of Professor Sıddık İçli. Her current interests involve organic and inorganic coatings, optoelectronic devices, semiconductors, photodetectors and organic light emitting diodes. --en_US
dc.identifier.doi10.1016/j.snb.2014.12.056
dc.identifier.endpage863en_US
dc.identifier.issn0925-4005
dc.identifier.issn0925-4005en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage853en_US
dc.identifier.urihttps://doi.org/10.1016/j.snb.2014.12.056
dc.identifier.urihttps://hdl.handle.net/11454/25939
dc.identifier.volume209en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.relation.ispartofSensors and Actuators, B: Chemicalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBenzimidazoleen_US
dc.subjectBenzothiadiazole fluorescenceen_US
dc.subjectCobalt detectionen_US
dc.subjectCopper recognitionen_US
dc.subjectQuenchingen_US
dc.titleStudies on UV-vis and fluorescence changements in Co 2+ and Cu 2+ recognition by a new benzimidazole-benzothiadiazole derivativeen_US
dc.typeArticleen_US

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