Synthesis, characterization, structure determination from powder X-ray diffraction data, and biological activity of azo dye of 3-aminopyridine and its complexes of Ni(II) and Cu(II)

Mohammed, Hasan Shamran

doi:10.4314/bcse.v34i3.8

Cited by 14 publications

(12 citation statements)

References 32 publications

(36 reference statements)

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“…In our case, the complexes did not show photoisomerization behavior which means that the CPAT dye is bonded to the metal within complex structure. It is nice to point that the cis isomer backed totally at room temperature to trans isomer which means that the chromic behavior is intrinsic [27][28][29][30][31][32].…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Identification, and Biological Study for Some Complexes of Azo Dye Having Theophylline

Mohammed

2021

The Scientific World Journal

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This article includes the synthesis of heterocyclic azo dye of theophylline by coupling diazonium salt of 4-chloroaniline with theophylline which is, namely, 8-(1-(4-chlorophenyl)azo)theophylline (CPAT). The complexes of cobalt and nickel were prepared by reacting their ions with CPAT ligand in ethanol under 1 : 2 ratio metal-ligand. The CPAT ligand and its complexes were characterized by elemental analysis, infrared spectrometry, electronic absorption spectroscopy, molar conductivity, and magnetic moment. The cobalt and nickel complexes show octahedral geometry having general formula [M(CPAT)2Cl2]. This article addresses the properties of CPAT dye such as photochromic properties. The CPAT dye exhibited obvious and desired changes under irradiation with visible light (405 nm), high sensitive for pH changes which refer to its ability to be analysis indicator. CPAT dye exhibited solvatochromic properties presenting red shift with polar solvent. The CPAT and its complexes show interesting antibiological activities towards Staph. aureus and E. coli bacteria and Aspergillus fungi.

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Section: Resultsmentioning

confidence: 99%

Synthesis, Identification, and Biological Study for Some Complexes of Azo Dye Having Theophylline

Mohammed

2021

The Scientific World Journal

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“…The spectrum of the APAX ligand showed bands at 240, 279 and 341 nm that belong to the electronic transition of π→π* and a band at 460 nm belongs to the n→π* electronic transition [20]. The cobalt complex of the APAX ligand showed a band at 324 nm due to the π→π* of APAX ligand.…”

Section: Electronic Spectra Of the Apax Ligand And Its Complexesmentioning

confidence: 96%

Synthesis, characterization, DFT calculations and biological evaluation of azo dye ligand containing 1,3-dimethylxanthine and its Co(II), Cu(II) and Zn(II) complexes

Mohammed¹,

Al-Hasan²,

Chaieb³

et al. 2022

Bull. Chem. Soc. Eth.

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ABSTRACT. The azo dye of 1,3-dimethylxanthine, namely 8-[(4-acetyl phenyl azo)]-1,3-dimethylxanthine (APAX), was prepared in two steps. The first step included the formation of the diazonium salt by reacting 4-aminoacetophenone with sodium nitrite NaNO2 under acidic conditions and completing the diazotization process while maintaining a low temperature below 5 °C. The resulting diazonium salt was reacted with the 1,3-dimethylxanthine compound and obtained on the azo dye, which was characterized by UV-Vis, FT-IR, 1H-NMR spectroscopies and elemental analysis. DFT calculations were performed to obtain optimized geometry of the ligand. These calculations were performed using three functionals and 6-311++ G (d,p) basis and allow to determinate bond length, bond angles, dihedral and HOMO and LUMO energies. The APAX ligand exhibited considerable color changes when it mixed with solution of cobalt, copper and zinc ions, therefore, it is considered a probe to detect these ions. Metallic complexes of APAX ligand were prepared by interacting aqueous solutions of the metallic salts of Co(II), Cu(II) and Zn(II) with APAX ligand under a molar ratio equal to 2:1 (APAX ligand : metal). The APAX dye and the complexes showed exciting biological activity against E. coli, Staph. aureus and Aspergillus. The APAX dye was pH sensitive and exhibited interesting photochromic behavior. KEY WORDS: 1,3-Dimethylxanthine, Dye, Complexes, pH sensitive, Probe, Bacteria, DFT calculations Bull. Chem. Soc. Ethiop. 2023, 37(2), 347-356. DOI: https://dx.doi.org/10.4314/bcse.v37i2.8

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“…The antifungal, antibacterial, and anti-HIV properties of azo compounds are widely recognized in medicine [3,4]. Azo dyes are important analytical reagents for the estimation of trace concentrations of metal ions [5]. Aromatic azo compounds, in particular, are employed as acidbase indicators, as commercial colorants for polymers and textiles and in biological strains [6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of a New Azo Ligand Derivative from 4,5-BIS(4-Methoxyphenyl) Imidazol and its Metal Complexes and Biological Activity Study of its PD(II) Complex

Ali¹,

Radhi²,

Ali³

2022

PJMHS

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In the current work, the azo ligand and its Pd (Ⅱ), Cd (Ⅱ), Zn (Ⅱ) and Hg (Ⅱ) complexes were synthesized, characterized and their spectroscopic characteristics were studied. The new ligand was synthesized from the coupling reaction between 4,5-bis(4-methoxy phenyl)imidazole and the diazonium salt of 4-Amino benzoic acid in an alkaline medium at 0-5 ᵒC. the new azo metal complexes were prepared by the reaction between the ligand and metals chlorides. All the synthesized compounds were characterized by FT-IR, 1H-NMR, Mass spectral analysis, UV-Vis spectrophotometric, molar conductivity, and magnetic sensitivity. The biological activity of the azo ligand and its Pd (Ⅱ) complex was also studied. keywords: Azo compound, 4,5-di (4-methoxy phenyl) imidazole, azo metal complexes

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Synthesis, characterization, structure determination from powder X-ray diffraction data, and biological activity of azo dye of 3-aminopyridine and its complexes of Ni(II) and Cu(II)

Cited by 14 publications

References 32 publications

Synthesis, Identification, and Biological Study for Some Complexes of Azo Dye Having Theophylline

Synthesis, Identification, and Biological Study for Some Complexes of Azo Dye Having Theophylline

Synthesis, characterization, DFT calculations and biological evaluation of azo dye ligand containing 1,3-dimethylxanthine and its Co(II), Cu(II) and Zn(II) complexes

Synthesis and Characterization of a New Azo Ligand Derivative from 4,5-BIS(4-Methoxyphenyl) Imidazol and its Metal Complexes and Biological Activity Study of its PD(II) Complex

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