Synthesis, Characterization and Antibacterial Activityof Schiff Bases Derived from 4-Dimethylaminobenzaldehyde with Some Amino Acids and 4-Aminoantipyrine toward Cu (II), Ni (II), Co (II), Cd (II) and Mn (II) Ions

Ferjani, Rashd. M. El; Ahmad, M. U.; Harun, Farah Wahida; Bulgasem, Bulgasem Y

doi:10.9790/5736-1006010613

Cited by 5 publications

(7 citation statements)

References 14 publications

(21 reference statements)

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“…The Co(II) complex had a magnetic moment of 4.91 BM, which was in agreement with the reported value for octahedral Co(II) complexes [27]. The present Ni(II) complex showed a magnetic moment value of 3.1 within the range of 2.9-3.3 BM [25,28], suggesting an octahedral environment. The Cu(II) complex showed a magnetic moment value of 1.82 BM, higher than the spin-only value 1.73 BM as expected for one unpaired electron, which was monomeric and consistent with a distorted octahedral geometry [29].…”

Section: Magnetic Measurementssupporting

confidence: 90%

Synthesis and Biological Screening of the Gold Complex as Anticancer and Some Transition Metal Complexes with New Heterocyclic Ligand Derived from 4-Amino Antipyrine

Mohammed¹,

Mehdi²,

Ali³

2018

Nano BioMed ENG

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A new azo Schiff-base ligand, (N 1 Z,N 2 Z)-N 1 ,N 2-bis(4-((Z)4-hydroxy naphthalen-1-yl)diazenyl)-(1,5-dimethy-2-phenyl-1H-pyrazol-3(2H)-ylidene) benzene-1,2-diamine, has been synthesized from coupling (N 1 Z,N 2 Z)-N 1 ,N 2-bis(4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-ylidene)benzene-1,2-diamine with 1-naphthol. Fourier-transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (1 H-NMR), carbon nuclear magnetic resonance (13 C-NMR) technique, ultravioletvisible spectroscopy (UV-Vis), mass analysis, molar conductance and magnetic susceptibility were used to characterize the structures of the new ligand and their transition metal complexes. The complexes were found to have the general formula (M)(L)Cl 2 where M = Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II), (M)(L)Cl 3 where M = Au(III), and (M)(L)Cl 2 Cl where M = Fe(III). The FTIR results demonstrated that the coordination sites were the azomethine nitrogen and azo nitrogen atoms of the azo Schiff-base ligand. The electronic spectral and magnetic measurement data indicated that the complexes exhibited octahedral geometry, except the Au(III) complex suggested a square planar geometry around the central metal ion. The results showed the highest inhibitory effect for gold the complex. The effect of biological screening of the gold complex on human colon cancer cell line LS-174 was investigated. The gold complex was observed to have the highest inhibitory effect.

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Section: Magnetic Measurementssupporting

confidence: 90%

Synthesis and Biological Screening of the Gold Complex as Anticancer and Some Transition Metal Complexes with New Heterocyclic Ligand Derived from 4-Amino Antipyrine

Mohammed¹,

Mehdi²,

Ali³

2018

Nano BioMed ENG

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“…As expected, the negative values of Δ S ads 0 pronounce the decrease in entropy with respect to an exothermic adsorption process. In a bulk solution, the inhibitor molecules are free to migrate and as the adsorption process proceeds, the inhibitor molecules’ adsorption onto the MS surface becomes more organized, which lowers entropy. − Moreover, the values of two methods’ results for Δ H ads 0 and −Δ S ads 0 are in good agreement.…”

Section: Resultsmentioning

confidence: 90%

“…Table makes it evident that as temperature rises, Δ G ads 0 rises as well, indicating that 4-NBAAP corrosion inhibition of MS is an exothermic process. Here, adsorption of 4-NBAAP on the metal surface becomes unfavorable as the reaction temperature rises. − The integrated version of the Van’t Hoff equation can be used to calculate the entropy of adsorption and the enthalpy of adsorption (Δ H ads 0 ) and it is expressed as follows. − normalΔ G normala normald normals 0 = normalΔ H normala normald normals 0 − T normalΔ S normala normald normals 0 Figure shows a linear plot of Δ G ads 0 against T , where the intercept is equal to Δ H ads 0 and the slope is equal to Δ S ads 0 . The values of Δ S ads 0 and Δ H ads 0 that were obtained are −123.4 and −72.56 kJ mol –1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Quantum Chemical and Experimental Evaluation of a 4-Amino-Antipyrine Based Schiff Base as Corrosion Inhibitor for Steel Material

Narayanswamy,

Ramakrishna,

Shekar

et al. 2024

ACS Omega

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Electrochemical experiments such as potentiodynamic polarization, electrochemical impedance spectroscopy, and gravimetric studies have been used to examine the corrosion inhibitory efficacy of 4-[(4-nitrobenzylidene)-amino]-antipyrine (4-NBAAP) on mild steel (MS) in 1 M HCl. 4-NBAAP inhibits the corrosion of MS through a mixed inhibition mechanism, according to the electrochemical investigation. The efficiency of 4-NBAAP increases with an increase in the inhibitor concentration and decreases with an increase in temperature. The adsorption of 4-NBAAP molecules on the MS surface follows the Langmuir adsorption isotherm. To find the relationship between the 4-NBAAP molecular structure and inhibitive effect, a few thermodynamic parameters were computed. The experimental results obtained from gravimetric and different electrochemical investigations prove the superiority of the inhibitor at higher concentrations in controlling the corrosion process of the steel in aggressive environments. Also, quantum chemical studies were performed to provide further insights into the inhibition mechanism.

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“…(ν 1 ) , 3 A 2 g→ 3 T 1 g (F) (ν 2 ) , and 3 A 2 g→ 3 T 1 g(P)(ν 3 ) transitions respectively. Its magnetic moment is 2.97 B.M the octahedral geometry has been assigned for this Ni (II) complex [30,31].…”

Section: Electronic Spectra and Magnetic Momentsmentioning

confidence: 99%

Synthesis and Characterization of Some Transition Metal Complexes with New Azo- Schiff Base Ligand 3,4-bis(((1E,2E)-2-((2-((4-((Z)-(3-Hydroxyphenyl)Diazenyl)Naphthalen-1-yl)amino)ethyl)imino)-1,2-Diphenylethylidene)Amino)Phenyl)(phenyl)Methanone

Kareem

Hadi

2020

Egypt. J. Chem.

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A NEW Azo-Schiff base derivative (3,4-bis(((1E,2E)-2-((2-((4-((Z)-(3-hydroxyphenyl) diazenyl)naphthalen-1-yl)amino)ethyl)imino)-1,2-diphenylethylidene)amino)phenyl) (phenyl)methanone (HANPH) and its metal complexes which include Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Pt(II), and Au(III) metal ions were synthesized. The structure of these compounds has been investigated by using elemental analysis, FT-IR, UV-Vis spectrometric methods, 1 H-NMR, mass spectra, atomic absorption, molar conductivity and magnetic susceptibility of metal complexes. The spectroscopic data of the complexes suggest that their (1:1) (metal: ligand) is mole ratio. Also, the analytical studies for all new complexes have shown octahedral geometries, except for Pt (II) and Au (III) complexes which suggested square planar geometries also its conductivity measurements show electrical properties. These complexes show high conductance value supporting (1:1) electrolytic nature. Furthermore, the FTIR results show that the coordination site from the ligand to the metal ions were through the nitrogen of azomethine group and the nitrogen of the azo group for all new complexes, except for Pt (II) and Au (III) complexes which were through the nitrogen of imine groups only.

show abstract

Synthesis, Characterization and Antibacterial Activityof Schiff Bases Derived from 4-Dimethylaminobenzaldehyde with Some Amino Acids and 4-Aminoantipyrine toward Cu (II), Ni (II), Co (II), Cd (II) and Mn (II) Ions

Cited by 5 publications

References 14 publications

Synthesis and Biological Screening of the Gold Complex as Anticancer and Some Transition Metal Complexes with New Heterocyclic Ligand Derived from 4-Amino Antipyrine

Synthesis and Biological Screening of the Gold Complex as Anticancer and Some Transition Metal Complexes with New Heterocyclic Ligand Derived from 4-Amino Antipyrine

Quantum Chemical and Experimental Evaluation of a 4-Amino-Antipyrine Based Schiff Base as Corrosion Inhibitor for Steel Material

Synthesis and Characterization of Some Transition Metal Complexes with New Azo- Schiff Base Ligand 3,4-bis(((1E,2E)-2-((2-((4-((Z)-(3-Hydroxyphenyl)Diazenyl)Naphthalen-1-yl)amino)ethyl)imino)-1,2-Diphenylethylidene)Amino)Phenyl)(phenyl)Methanone

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