Preparation, Characterization of Novel Cadmium-Based Metal-Organic Framework for Using as a Highly Selective and Sensitive Modified Carbon Paste Electrode in Determination of Cu(II) Ion

Deghadi, Reem G.; Eliwa, Ayman S.; Ali, Aya E.; Hosny, Wafaa M.; Mohamed, Gehad G.

doi:10.1080/02603594.2020.1870963

Cited by 18 publications

(16 citation statements)

References 54 publications

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“…This was an evidence for the condensation of ketone and amine to give the Schiff base ligand. [ 27 ] The band of N ‐pyridine appeared in the ligand at 1119 cm −1 . [ 28,29 ] Due to the preparation of Schiff base ligand was done in 1:1 molar ratio, two intensity bands were appeared at 3440 and 3382 cm −1 which correspond to ν asy (NH 2 ) and ν sym (NH 2 ), respectively.…”

Section: Resultsmentioning

confidence: 99%

“…[ 50 ] The band at 1623 cm −1 due to the azomethine group of the Schiff base ligand was shifted to higher and lower frequencies (1621–1657 cm −1 ) after complexation, indicated metal ions linked to nitrogen atom of azomethine group. [ 27 ]…”

Section: Resultsmentioning

confidence: 99%

“…[50] The band at 1623 cm À1 due to the azomethine group of the Schiff base ligand was shifted to higher and lower frequencies (1621-1657 cm À1 ) after complexation, indicated metal ions linked to nitrogen atom of azomethine group. [27] Schiff base ligand condensation was done in 1:1 molar ratio, so the spectrum exhibited a pair of intensity bands at 3440 and 3382 cm À1 which correspond to ν asy (NH 2 ) and ν sym (NH 2 ). All metal complexes structure had coordinated water, so OH groups were appeared as broad bands in the same region that overlapped with the two bands of NH 2 group.…”

Section: Ir Spectramentioning

confidence: 99%

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Antibacterial and anticorrosion behavior of bioactive complexes of selected transition metal ions with new 2‐acetylpyridine Schiff base

Deghadi

Elsharkawy

Ashmawy

et al. 2022

Applied Organom Chemis

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Successful preparation of Schiff base 4‐(4‐aminophenoxy)‐N‐(1‐(pyridin‐2‐yl)ethylidene)aniline derived from refluxing of 4,4‐oxydianniline with 2‐acetylpyridine within 2 h in 1:1 molar ratio was performed. Different transition metal complexes were synthesized by reacting metal chlorides with the formed ligand in 1:1 molar ratio. Structural features of the complexes were obtained from different tools such as infrared (IR), 1H‐nuclear magnetic resonance (1H‐NMR), ultraviolet–visible (UV‐vis), molar conductivity, thermogravimetric (TG)/differential thermogravimetric (DTG), microanalysis, and mass spectrometry. All complexes had an octahedral structure and Schiff base acted as a neutral bidentate ligand that linked to metal centers via N‐azomethine and N‐pyridine atoms. Cr(III), Fe(III), and Ni(II) complexes were electrolytes while other complexes were nonelectrolytes. The molecular structure of Schiff base was optimized theoretically and its HOMO and LUMO energies were dictated by B3LYP/DFT calculations. The in vitro antibacterial activity versus some selected bacteria species showed that all prepared compounds were biologically active except Fe(III) complex against certain species and Co(II) complex had the highest biological activity values. Molecular docking was used to determine effective binding modes between ligand and its [Co(L)(H2O)2Cl2]·4H2O complex with active sites of 4WJ3, 4ME7, 4K3V, and 3T88 receptors. The strongest binding of Co(II) complex was with the 4ME7 receptor with lowest binding energy value −25.4 kcal mol−1. Schiff base as corrosion inhibitors for mild steel in 1.0‐M HCl had been investigated using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PP), and electrochemical frequency modulation (EFM). The results showed that the inhibitor acts as a mixed‐type inhibitor. The inhibition efficiency increases with increasing inhibitor concentration to its maximum of 97.5% at 1 × 10−3 M solution. The adsorption model obeys the Langmuir isotherm, and Gibbs free energy was around −40 kJ/mol, indicating that it is spontaneously and chemically adsorbed on the surface. SEM/EDX results proved the sticking of a barrier film on the mild steel sample.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Ir Spectramentioning

confidence: 99%

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Antibacterial and anticorrosion behavior of bioactive complexes of selected transition metal ions with new 2‐acetylpyridine Schiff base

Deghadi

Elsharkawy

Ashmawy

et al. 2022

Applied Organom Chemis

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“…This can be attributed to the involvement of the υ(C═N) in coordination to the Ln(III) ions. [ 22,23,26,29‐31 ] The bands appeared at 1622–1652 cm −1 were attributed to the carbonyl v(C═O) group. In the spectra of all the complexes, the group of carbonyl v(C═O) was significantly moved to a lower frequency due to hydrogen bond formation with OH b group.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, spectroscopic characterization, density functional, thermal studies, and molecular docking simulation of rare earth element complexes

Ahmed

Mohamed

2021

Applied Organom Chemis

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“…The redox and catalytically active sites formed by the active metals and/or ligands lead to electrochemical sensing capabilities of MOFs [39–42] . Although MOFs have been extensively used in electrochemical sensor field recently, the use of MOFs in potentiometric sensor applications are very limited [43–46] …”

Section: Introductionmentioning

confidence: 99%

Development of a PVC Membrane Potentiometric Sensor with Low Detection Limit and Wide Linear Range for the Determination of Maprotiline in Pharmaceutical Formulations

et al. 2022

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Maprotiline (MAP), is an active ingredient of some antidepressants which has been broadly used for the therapy of depression. The overdose of MAP in the treatment of patients with depression can lead to significant side effects, even lethal intoxication. Therefore, it is very important to develop simple, inexpensive, fast and reliable detection methods for MAP in interested samples. In our present study, we have offered a novel poly(vinylchloride) (PVC) membrane maprotiline‐selective potentiometric sensor based on a type of MOFs, known as MIL‐53(Al), as electroactive ionophore substance. The sensor prepared at the optimum membrane composition exhibited a linear response for maprotiline hydrochloride in the concentration range of 1,0×10−9 M−1,0×10−2 M with a slope of 59,1 mV/decade and detection limit of 9,0×10−10 M. The pH working range of the sensor was determined as 2,0–9,5. The response time of the sensor was very fast and less than 5 s. With these performance features, it has been shown that the current sensor has quite superior features compared to the potentiometric MAP‐selective sensor available in the literature. The potentiometric application of the sensor was successfully carried out with the detection of MAP in pharmaceutical tablets containing MAP‐HCl.

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Preparation, Characterization of Novel Cadmium-Based Metal-Organic Framework for Using as a Highly Selective and Sensitive Modified Carbon Paste Electrode in Determination of Cu(II) Ion

Cited by 18 publications

References 54 publications

Antibacterial and anticorrosion behavior of bioactive complexes of selected transition metal ions with new 2‐acetylpyridine Schiff base

Antibacterial and anticorrosion behavior of bioactive complexes of selected transition metal ions with new 2‐acetylpyridine Schiff base

Synthesis, spectroscopic characterization, density functional, thermal studies, and molecular docking simulation of rare earth element complexes

Development of a PVC Membrane Potentiometric Sensor with Low Detection Limit and Wide Linear Range for the Determination of Maprotiline in Pharmaceutical Formulations

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