Ag+-selective poly(vinyl chloride) Membrane Electrode Based on [N,N- ethylenebis-(3-methoxy salicylaldimine)]

Topçu, Cihan; Çoldur, Fatih; Andaç, Müberra; Işıldak, İbrahim; Şenyüz, Nuray; Batı, Hümeyra

doi:10.2174/157341111794814995

Cited by 11 publications

(2 citation statements)

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“…Organic electronics is a field that has attracted increasing attention due to their practical applications − as light emitting diodes, , solar cells, transistors, − super capacitors, sensors and actuators, − photoswitching, , etc. Many materials can be used as organic semiconductors, including coordination compounds, polymers, hybrids, and nanocomposites. − Aromatic molecules with extended π frameworks are particularly interesting for this aim .…”

Section: Introductionmentioning

confidence: 99%

Structural Correlations between Luminescent Properties and Excited State Internal Proton Transfer in Some Zinc(II) N,N′-Bis(salicylidenes)

et al. 2015

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In this study two salicylidene ligands, N,N'-bis(salicylidene)-1,2-phenylenediamine and N,N'-bis(salicylidene)-4,5-diaminopyrimidine, and their respective aquo-zinc(II) coordination compounds were synthesized. Their characterization was performed by FTIR, proton and carbon NMR, elemental analysis,mass spectroscopy and cyclic voltammetry. Crystal structures of the ligands were determined by monocrystal X-ray diffraction. The photoluminescent properties under photostationary conditions indicate that the ligand emission predominates in both the pristine materials and their zinc(II)complexes. For both ligands, the coordination of a metal atom leads to a redshift of their emission bands in both solvent and solid state. Molecular structures and excitation energies of ligands and complexes were evaluated at DFT level using PBE0/aug-cc-pVDZ. Their ligand and complex electronic transitions can be assigned mainly to the intraligand π→π * type, mainly involving frontier molecular orbitals, with a small participation of the metal. According to our calculations, there is an increasing in the planarity of the ligand structure in the complex, which could explain the redshifting observed in the absorption and emission spectra. The dynamic photoluminescence suggests the occurrence of excited state intramolecular proton transfer from the oxygen to the nitrogen atoms in the coordination site of the sal-4,5-pym.Moreover, they are able to predict the occurrence of the excited state internal proton transfer for the sal-4,5-pym. The dynamic of this proton transfer is demonstrated by both, time resolved emission spectra (TRES) and studies in protic solvent (ethanol).

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Section: Introductionmentioning

confidence: 99%

Structural Correlations between Luminescent Properties and Excited State Internal Proton Transfer in Some Zinc(II) N,N′-Bis(salicylidenes)

et al. 2015

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“…The array of potential measurements was chosen such that the higher I‾ concentration from the lower I‾ concentration. The results in Figure 4 demonstrated that the developed sensor reached its final potential very quickly and the average response time of the sensor was measured as 5 seconds in all concentration range [29,30]. 1.0×10 -2 and D: 1.0×10 -1 molL -1 I‾).…”

Section: Response Timementioning

confidence: 92%

Potentiometric Monitoring of Iodide Ions Using a Highly Selective Iodide Sensor Based on AgI-Cu2S-Multi Walled Carbon Nano Tube Material

TOPCU,

COŞKUN,

YILMAZ

et al. 2023

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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In this work, a new iodide selective sensor based on an AgI-Cu2S-Multiwalled carbonnanotube-Graphite-Paraffin oil composite material was described for highly selective potentiometric determination of iodide ions. To obtain the best potentiometric performance characteristics of the sensor, the sensor components was optimized and the sensor was formed by properly pressing of the optimized sensor components. The experimental results were showed that the most appropriate potentiometric response was achieved with the sensor materials containing a compositions of G:MWCNT:AgI:Cu2S:PO in the ratio 50:5:20:5:20 (% w/w). The developed sensor display a wide linear working range (1.0×10-5-1.0×10-1 molL-1) for iodide ions. In this linear working range, the Nernstian slope of the sensor was 51.5±1.0 mV and the correlation coefficient (R2) was determined as 0.9991. The sensor was of a very low response time (5s). The repeatability of the sensor potential response was very good and its response remained unchanged in the pH range of 6.0-9.0. The interference effect on the sensor response of different anionic species was tested by the separate solution method (SSM) and the sensor selectivity was quite good. The life time of the sensor was measured as 13 weeks and the sensor was successfully used as indicator sensor for the potentiometric titrations of iodide ions with silver nitrate solution. Additionally, the sensor was successfully applied for the direct detection of iodide ions in environmental water samples.

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Highly selective and sensitive potentiometric determination of favipiravir in COVID-19 antiviral drug formulations

Topcu,

Aydin,

Atasoy

et al. 2024

Microchemical Journal

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Ag+-selective poly(vinyl chloride) Membrane Electrode Based on [N,N- ethylenebis-(3-methoxy salicylaldimine)]

Cited by 11 publications

References 0 publications

Structural Correlations between Luminescent Properties and Excited State Internal Proton Transfer in Some Zinc(II) N,N′-Bis(salicylidenes)

Structural Correlations between Luminescent Properties and Excited State Internal Proton Transfer in Some Zinc(II) N,N′-Bis(salicylidenes)

Potentiometric Monitoring of Iodide Ions Using a Highly Selective Iodide Sensor Based on AgI-Cu2S-Multi Walled Carbon Nano Tube Material

Highly selective and sensitive potentiometric determination of favipiravir in COVID-19 antiviral drug formulations

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