Synthesis, Structural Characterization, and Antimicrobial Activities of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) Complexes of Triazole-based Azodyes

Khedr, Abdalla M.; Gaber, Mohamed; El-Zaher, Eman H. Abd

doi:10.1002/cjoc.201190211

Cited by 44 publications

(26 citation statements)

References 52 publications

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“…In continuation of our previous work concerning metal complexes based on azo compounds, in the work reported here we aimed to synthesis Cu(II) azo complexes with our target ligand. Structural characterization was performed using elemental analysis, magnetic measurements, thermal studies as well as various spectroscopic techniques such as infrared (IR), UV–visible, NMR, mass and electron spin resonance (ESR).…”

Section: Introductionmentioning

confidence: 99%

“…[19,20] Many scientists have concentrated their research work on transition metal chelates of azo compounds due to their biological and catalytic applications. [21][22][23][24][25][26][27] In continuation of our previous work concerning metal complexes based on azo compounds, [28][29][30][31][32][33][34] in the work reported here we aimed to synthesis Cu(II) azo complexes with our target ligand. Structural characterization was performed using elemental analysis, magnetic measurements, thermal studies as well as various spectroscopic techniques such as infrared (IR), UV-visible, NMR, mass and electron spin resonance (ESR).…”

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confidence: 99%

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2,4‐Dihydroxy‐5‐[(5‐mercapto‐1H‐1,2,4‐triazole‐3‐yl)diazenyl]benzaldehyde acetato, chloro and nitrato Cu(II) complexes: Synthesis, structural characterization, DNA binding and anticancer and antimicrobial activity

Gaber

Fathalla

El‐Ghamry

2019

Applied Organom Chemis

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Acetato, chloro and nitrato Cu(II) complexes of a novel azo compound, namely 2,4‐dihydroxy‐5‐[(5‐mercapto‐1H‐1,2,4‐triazole‐3‐yl)diazenyl]benzaldehyde, have been prepared. The stoichiometry, stereochemistry and bonding fashion of these copper chelates were deduced via elemental analyses, spectral methods and conductivity and magnetic measurements. Infrared spectral data confirmed the participation of azo N atom and the deprotonated OH group. UV–visible spectral data and magnetic measurements indicated octahedral stereo‐structure for the acetato and nitrato compounds and square planer for the chloro compound. Thermogravimetric analysis was applied to investigate the thermal degradation of the metal chelates. The thermo‐kinetic parameters were computed. The molecular modeling technique was used to support the predicted geometry of the prepared chelates. The interaction between the Cu(II) complexes and calf thymus DNA was studied using two techniques: absorption and viscosity measurements. The values of binding constant obtained from the absorption spectral method were calculated and found to be 4.23 × 104, 26.93 × 104, 13.01 × 104 and 5.36 × 104 M−1 for ligand and acetato, chloro and nitrato complexes, respectively. The antimicrobial activities were evaluated against various bacterial and fungi strains. The in vitro antitumor efficacy of the synthesized compounds was investigated against the HEPG2 cell line.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

2,4‐Dihydroxy‐5‐[(5‐mercapto‐1H‐1,2,4‐triazole‐3‐yl)diazenyl]benzaldehyde acetato, chloro and nitrato Cu(II) complexes: Synthesis, structural characterization, DNA binding and anticancer and antimicrobial activity

Gaber

Fathalla

El‐Ghamry

2019

Applied Organom Chemis

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“…On the other hand, a material with only polymeric chain shows large second‐order NLO property, whereas third‐order NLO property is either very small or absent . Hence, NLOphoric materials with the azo unit in skeleton have useful applications in printing systems, information storage devices, second harmonic generations, dyes sensitized solar cells, sensing devices, and photorecording devices . The azo dyes undergo photo‐induced conformational changes from trans to cis isomerization, which leads to change in physical characteristics such as refractive index and dipole moment .…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical investigation of linear and nonlinear optical properties of ethyl‐3‐hydroxy‐2‐napthoate azo dyes by solvatochromic, computational aspects, and Z‐scan technique

Yadav

Taware

Sreenath³

et al. 2020

J of Physical Organic Chem

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To investigate the effect of substituents in azo dyes on their nonlinear optical properties, four azo dyes were synthesized using ethyl‐3‐hydroxy‐2‐naphthoate as a coupler and characterized. The polarizability (α) and hyperpolarizability (β and γ) constants were determined by using solvatochromic and computational method. A group of global hybrid and range seperated hybrid functionals having different Hartree‐Fock exchange percentage were used to evaluate the NLO properties. The functional ωB97 and ωB97XD performed better in the determination of polarizability (α) and hyperpolarizability (β and γ), respectively. The observed results for polarizability and hyperpolarizability parameters were supported by highest occupied molecular orbital‐lowest unoccupied molecular orbital (HOMO‐LUMO) energy gap, Hammett‐coefficient (σ), excited‐state coefficients (σex), and hyper‐hardness (Γ) values. Third‐order NLO properties were analyzed by using Z‐scan technique. The –OCH3 substituted dye 4d shows higher value of molecular susceptibility (χ(3)), polarizability (α), and hyperpolarizability (β and γ) parameters among the studied azo dyes. They are likely to have the potential applications in optoelectronics and photonics.

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“…On the other hand a material with only polymeric chain shows large second order NLO property whereas third order NLO property is either very small or absent . Hence, NLOphoric materials with the azo unit in skeleton have useful applications in printing systems, information storage devices, second harmonic generations, dyes sensitized solar cells (DSSCs), sensing devices and optical switches, information technology applications, photo recording devices, detection of radiations and optical data storage . D‐π‐A motifs find application as NLOphores .…”

Section: Introductionmentioning

confidence: 99%

NLO Properties of 2‐Napthol Monoazo Disperse Dyes by DFT and Z‐Scan Technique – A Detailed Study

Yadav

Sreenath²,

Chitrambalam³

et al. 2019

ChemistrySelect

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The non‐linear and linear optical properties of 2‐napthol based four monoazo dyes were examined by computational and Z‐scan methods. Time‐dependent (TD)‐density functional theory (DFT) computations were used to evaluate the linear polarizability (α), first‐order hyperpolarizability (β) and second‐order hyperpolarizability (γ) using global hybrid and range separated hybrid functionals at 6–311+ G (d) basis set. The functional, ωB97 performed better in the determination of linear polarizability (α) and ωB97X−D performed better in the determination of the first‐order hyperpolarizability (β) and second‐order hyperpolarizability (γ) among the global hybrid and range separated hybrid functionals. To support our theoretical findings for α, β, and γ, we have correlated with the Hammett‐coefficient (σ), excited state coefficient (σex) as well as by hyper‐hardness (Γ) relations. Third order NLO parameters – non‐linear refractive index (η2), non‐linear absorption coefficient (β), real parts and the imaginary parts of third order susceptibility (χ(3)), and second order hyperpolarizability (γ) were investigated by close and open aperture methods using Z‐scan technique. The –NO2 substituted dye 2 shows higher value of molecular susceptibility (χ(3)), polarizability (α), and hyperpolarizability (β, γ) parameters among the studied azo dyes. They are likely to have potential applications in optoelectronics and photonics.

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Synthesis, Structural Characterization, and Antimicrobial Activities of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) Complexes of Triazole-based Azodyes

Cited by 44 publications

References 52 publications

2,4‐Dihydroxy‐5‐[(5‐mercapto‐1H‐1,2,4‐triazole‐3‐yl)diazenyl]benzaldehyde acetato, chloro and nitrato Cu(II) complexes: Synthesis, structural characterization, DNA binding and anticancer and antimicrobial activity

2,4‐Dihydroxy‐5‐[(5‐mercapto‐1H‐1,2,4‐triazole‐3‐yl)diazenyl]benzaldehyde acetato, chloro and nitrato Cu(II) complexes: Synthesis, structural characterization, DNA binding and anticancer and antimicrobial activity

Experimental and theoretical investigation of linear and nonlinear optical properties of ethyl‐3‐hydroxy‐2‐napthoate azo dyes by solvatochromic, computational aspects, and Z‐scan technique

NLO Properties of 2‐Napthol Monoazo Disperse Dyes by DFT and Z‐Scan Technique – A Detailed Study

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