Synthesis, characterization and antimicrobial activity of new cobalt (II), nickel (II) and copper (II) complexes with 2-(2-hydroxy-1, 2-diphenylethylideneamino) benzoic acid

Manikshete, A. H.; S.K.Sarsamkar,; Deodware, Sachin A.; Kamble, VT; Asabe, M. R.

doi:10.1016/j.inoche.2011.01.016

Cited by 21 publications

(7 citation statements)

References 23 publications

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“…The ν asym (COO − ) and ν sym (COO − ) stretching vibrations are observed at 1540 and 1380 cm −1 in the FT‐IR spectrum of H 2 L . These bands are present in the range 1466–1545 and 1383–1410 cm −1 in the spectra of the metal complexes . This shift can be attributed to intramolecular hydrogen bonding.…”

Section: Resultsmentioning

confidence: 95%

Novel Schiff base ligand and its metal complexes with some transition elements. Synthesis, spectroscopic, thermal analysis, antimicrobial and in vitro anticancer activity

Mahmoud

Deghadi

Mohamed

2016

Applied Organom Chemis

128

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A novel Schiff base ligand (H2L) was prepared through condensation of 2,6‐diaminopyridine and o‐benzoylbenzoic acid in a 1:2 ratio. This Schiff base ligand was characterized using elemental and spectroscopic analyses. A new series of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) metal complexes of H2L were prepared and characterized using elemental analysis, spectroscopy (1H NMR, mass, UV–visible, Fourier transform infrared, electron spin resonance), magnetic susceptibility, molar conductivity, X‐ray powder diffraction and thermal analysis. The complexes are found to have trigonal bipyramidal geometry except Cr(III), Mn(II) and Fe(III) complexes which have octahedral geometry based on magnetic moment and solid reflectance measurements. The infrared spectral studies reveal that H2L behaves as a neutral bidentate ligand and coordinates to the metal ions via the two azomethine nitrogens. 1H NMR spectra confirm the non‐involvement of the carboxylic COOH proton in complex formation. The presence of water molecules in all reported complexes is supported by thermogravimetric studies. Kinetic and thermodynamic parameters were determined using Coats–Redfern and Horowitz–Metzger equations. The synthesized ligand and its complexes were screened for antimicrobial activities against two Gram‐positive bacteria (Bacillus subtilis and Staphylococcus aureus), two Gram‐negative bacteria (Escherichia coli and Neisseria gonorrhoeae) and one fungus (Candida albicans). Anticancer activities of the ligand and its metal complexes against human breast cancer cell line (MCF7) were investigated. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 95%

Novel Schiff base ligand and its metal complexes with some transition elements. Synthesis, spectroscopic, thermal analysis, antimicrobial and in vitro anticancer activity

Mahmoud

Deghadi

Mohamed

2016

Applied Organom Chemis

128

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“…In order to clarify the effect of DMSO on the biological screening and DMSO used as negative control in this study. It has no activity against control strains . The results are as summarized in the Table S20 and Figure S21–S24 (see supporting information).…”

Section: Resultsmentioning

confidence: 93%

Mono and Dinuclear Cu(II) Carboxylate Complexes with Pyridine and 1‐methylimidazole as Co–Ligands: Synthesis, Structure, Antibacterial Activity and Catalytic Nitroaldol Reactions

Premkumar¹,

Kaleeswaran

Kaviyarasan

et al. 2019

ChemistrySelect

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A new series of Cu(II) carboxylate complexes [Cu2(RCOO)4(Py)2] (1 & 2) and [Cu(RCOO)2(MIm)2] (3 & 4) {RCOO=p–FBA (p‐fluorobenzoic acid), BA (benzoic acid), Py (Pyridine), MIm (1–methylimidazole)} have been synthesized. The composition of complexes (1–4) has been established by spectral (FTIR, UV/Vis & EPR) methods and elemental analysis. Molecular structures of copper(II) carboxylate complexes [Cu2(p–FBA)4(Py)2] (1) and [Cu(p–FBA)2(MIm)2] (3) were established by X–ray diffraction. These copper(II) carboxylate complexes 1–4 exhibit a very good catalytic activity towards nitroaldol (Henry) reaction of various aldehydes with nitromethane. The ligands and copper(II) complexes were also screened for their antibacterial activity against microorganisms Staphylococcus aureus and Escherichia coli.

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“…The Ti (III) complex shows a broad band at 20110 cm -1 assign to 2 T 2g → 2 Eg transition for octahedral symmetry [25]. The Mn (III) complex shows three bands at 19000 cm -1 , 13000 cm -1 and 20,000 cm -1 assign to 5 Eg and Mn (dπ) → π* (azomethine) respectively. These bands are characteristic of octahedral geometry 26 .…”

Section: Ir Spectra Scheme 1: Synthesis Of Metal (Ti (Iii) V (Iii) mentioning

confidence: 96%

Synthesis, Characterization and Biological Evaluation of Transition and Inner Transition Metal Complexes of Ligands Derived Schiff Base from 1-phenyl-2, 3-dimethyl-4-(4-iminopentan-2-one)-pyrazole-5-one and 2-aminophenol

Saxena¹,

Saxena²

2013

Orientjchem.

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Synthesis, characterization and antimicrobial activity of new cobalt (II), nickel (II) and copper (II) complexes with 2-(2-hydroxy-1, 2-diphenylethylideneamino) benzoic acid

Cited by 21 publications

References 23 publications

Novel Schiff base ligand and its metal complexes with some transition elements. Synthesis, spectroscopic, thermal analysis, antimicrobial and in vitro anticancer activity

Novel Schiff base ligand and its metal complexes with some transition elements. Synthesis, spectroscopic, thermal analysis, antimicrobial and in vitro anticancer activity

Mono and Dinuclear Cu(II) Carboxylate Complexes with Pyridine and 1‐methylimidazole as Co–Ligands: Synthesis, Structure, Antibacterial Activity and Catalytic Nitroaldol Reactions

Synthesis, Characterization and Biological Evaluation of Transition and Inner Transition Metal Complexes of Ligands Derived Schiff Base from 1-phenyl-2, 3-dimethyl-4-(4-iminopentan-2-one)-pyrazole-5-one and 2-aminophenol

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