Synthesis, characterization, DFT calculation, and biological activity of pyrazole-based azo-metal(II) complexes

An azo dye ligand, [HL, (Z)-1-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)naphthalene-2,7-diol], and its Cu(II), Co(II), and Fe(II) complexes were synthesized in a 1:1 metal to ligand ratio. The prepared compounds were characterized by FT-IR and UV–vis spectroscopy, thermogravimetric and el...

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Main Authors: Albandari F. Alkurdi, Mutlaq Sh. AlJahdali, Abdulmohsen A. Alshehri
Format: Article
Language:English
Published: Elsevier 2022-01-01
Series:Results in Chemistry
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211715622002855
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author Albandari F. Alkurdi
Mutlaq Sh. AlJahdali
Abdulmohsen A. Alshehri
author_facet Albandari F. Alkurdi
Mutlaq Sh. AlJahdali
Abdulmohsen A. Alshehri
author_sort Albandari F. Alkurdi
collection DOAJ
description An azo dye ligand, [HL, (Z)-1-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)naphthalene-2,7-diol], and its Cu(II), Co(II), and Fe(II) complexes were synthesized in a 1:1 metal to ligand ratio. The prepared compounds were characterized by FT-IR and UV–vis spectroscopy, thermogravimetric and elemental analysis, X-ray powder diffraction, magnetic susceptibility measurements, scanning electron microscopy, and density functional theory (DFT) calculations. The electronic spectra and magnetic moments indicated that all complexes are paramagnetic and have an octahedral geometry. The antimicrobial activity was tested against the gram-positive bacteria B. subtilis and S. aureus and gram-negative bacteria E. coli and N. gonorrhoeae, whereas the antifungal activity was tested against C. albicans using the disk diffusion method. The Fe(II) complex showed strong antimicrobial activity against all the tested strains. Treatment of HepG2 liver cancer cells with different concentrations of the free ligand and its metal complexes in vitro using the MTT assay revealed that the free ligand and Co(II) complex demonstrated greater cytotoxicity (IC50 43.24 and 62.45 µg/mL, respectively) compared to the other metal complexes.
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spelling doaj.art-141498b6b22b43698e3cf8a6b427b1162022-12-22T04:23:10ZengElsevierResults in Chemistry2211-71562022-01-014100566Synthesis, characterization, DFT calculation, and biological activity of pyrazole-based azo-metal(II) complexesAlbandari F. Alkurdi0Mutlaq Sh. AlJahdali1Abdulmohsen A. Alshehri2Corresponding author.; Department of Chemistry, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi ArabiaDepartment of Chemistry, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi ArabiaDepartment of Chemistry, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi ArabiaAn azo dye ligand, [HL, (Z)-1-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)naphthalene-2,7-diol], and its Cu(II), Co(II), and Fe(II) complexes were synthesized in a 1:1 metal to ligand ratio. The prepared compounds were characterized by FT-IR and UV–vis spectroscopy, thermogravimetric and elemental analysis, X-ray powder diffraction, magnetic susceptibility measurements, scanning electron microscopy, and density functional theory (DFT) calculations. The electronic spectra and magnetic moments indicated that all complexes are paramagnetic and have an octahedral geometry. The antimicrobial activity was tested against the gram-positive bacteria B. subtilis and S. aureus and gram-negative bacteria E. coli and N. gonorrhoeae, whereas the antifungal activity was tested against C. albicans using the disk diffusion method. The Fe(II) complex showed strong antimicrobial activity against all the tested strains. Treatment of HepG2 liver cancer cells with different concentrations of the free ligand and its metal complexes in vitro using the MTT assay revealed that the free ligand and Co(II) complex demonstrated greater cytotoxicity (IC50 43.24 and 62.45 µg/mL, respectively) compared to the other metal complexes.http://www.sciencedirect.com/science/article/pii/S2211715622002855Azo dye metal (II) complexesHepG2 cell lineSEM/XRDDFT studiesBiological activityAntimicrobial activity
spellingShingle Albandari F. Alkurdi
Mutlaq Sh. AlJahdali
Abdulmohsen A. Alshehri
Synthesis, characterization, DFT calculation, and biological activity of pyrazole-based azo-metal(II) complexes
Results in Chemistry
Azo dye metal (II) complexes
HepG2 cell line
SEM/XRD
DFT studies
Biological activity
Antimicrobial activity
title Synthesis, characterization, DFT calculation, and biological activity of pyrazole-based azo-metal(II) complexes
title_full Synthesis, characterization, DFT calculation, and biological activity of pyrazole-based azo-metal(II) complexes
title_fullStr Synthesis, characterization, DFT calculation, and biological activity of pyrazole-based azo-metal(II) complexes
title_full_unstemmed Synthesis, characterization, DFT calculation, and biological activity of pyrazole-based azo-metal(II) complexes
title_short Synthesis, characterization, DFT calculation, and biological activity of pyrazole-based azo-metal(II) complexes
title_sort synthesis characterization dft calculation and biological activity of pyrazole based azo metal ii complexes
topic Azo dye metal (II) complexes
HepG2 cell line
SEM/XRD
DFT studies
Biological activity
Antimicrobial activity
url http://www.sciencedirect.com/science/article/pii/S2211715622002855
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