Metal chelates of some transition and non-transition metal ions with Schiff base derived from isatin witho-phenylenediamine

Hassaan, Aly M. A.; Khalifa, Mohamed A.

doi:10.1007/bf00816402

Cited by 17 publications

(4 citation statements)

References 18 publications

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“…Additional evidence for coordination of nitrogen and oxygen atoms is the appearance of the new ](M-N) and ](M-O) bands in the 435-448 cm −1 and 514-516 cm −1 regions, respectively. These observations are in good agreement with earlier reported results [34][35][36].…”

Section: Infrared Spectra Of the Ligand And The Complexessupporting

confidence: 94%

Synthesis, Characterization, and Electrochemical Behaviour of Cobalt(II) and Nickel(II) Complexes with N2O2 Chelating Ligand 4,4′-(Biphenyl-4,4′-diyldinitrilo)dipentan-2-one

Sibous

Bentouhami

Khan

2013

Journal of Inorganic Chemistry

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4,4′-Diaminobiphenyl reacts with 2,4-pentanedione in absolute ethanol in a molar ratio 1 : 2 to form mainly the product of [1 + 2] condensation, 4,4′-(biphenyl-4,4′-diyldinitrilo)dipentan-2-one (H2L). The Schiff base was used as tetradentate chelating ligand to coordinateCoIIandNiIIchlorides leading to complexes where the ratio of metal ligand was found to be 2 : 1 or 2 : 2. All the synthesized products were characterized by elemental analysis, infrared, electronic, and mass spectroscopy,1H NMR, and DSC. The electrochemical behaviour of the ligand and its complexes in DMF is also investigated.

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Section: Infrared Spectra Of the Ligand And The Complexessupporting

confidence: 94%

Synthesis, Characterization, and Electrochemical Behaviour of Cobalt(II) and Nickel(II) Complexes with N2O2 Chelating Ligand 4,4′-(Biphenyl-4,4′-diyldinitrilo)dipentan-2-one

Sibous

Bentouhami

Khan

2013

Journal of Inorganic Chemistry

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“…Additional evidence for coordination of the nitrogen is the presence of a ν(M-N) band in the 437-497 cm −1 region. Coordination through the oxygen atom is inferred from the shifts to lower wavenumbers of the ν(C-O) band as compared to their position in the ligands [32], and the appearance of a new band in the 528-586 cm −1 region assigned to ν(M-O), in agreement with earlier reported results [33][34][35][36]. 3.4 Electronic Spectra…”

Section: Infrared Spectrasupporting

confidence: 88%

Synthesis, Characterization and Electrochemical Behavior of CoII, NiII and CdII Complexes with N2O2 Donor Ligands Derived from 4,4′-Diaminobiphenyl and 2-Hydroxybenzaldehyde or 2,4-Dihydroxybenzaldehyde

et al. 2010

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…Schematic route of synthesis of RTeCl 3 ⋅ NMeIAP and R 2 TeCl 2 ⋅ NMeIAP. 1625 cm À 1 , characteristics of carbonyl (À C=O) and azomethine (À C=N) groups respectively, shifted to lower frequencies and appeared at 1708-1725 cm À 1 and 1606-1612 cm À 1 in the spectra of all aryltellurium(IV) complexes, indicating donation of electron pairs from carbonyl [33,34] oxygen and azomethine nitrogen [35][36][37] atoms. A broad band was observed at 3435 cm À 1 due to OÀ H stretching vibration, disappears in the spectra of all complexes indicating the deprotonation of OH group of Schiff base.…”

Section: Ir Spectramentioning

confidence: 99%

Synthesis, Spectroscopic, Biological Activity, Molecular Docking and Density Functional Theoretical Investigations of Novel Tellurium(IV) Schiff Base Complexes

et al. 2021

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Aryltellurium(IV) complexes (3a-3f) of type RTeCl 3 .NMeIAP and R 2 TeCl 2 .NMeIAP (R belongs to 4-Hydroxyphenyl, 4-Methoxyphenyl and 3-Methy-4-hydroxyphenyl) have been synthesized from 3-((2-Hydroxyphenyl)imino)-1-methylindolin-2-one Schiff base ligand (NMeIAP or HL), prepared by the condensation of N-methylisatin and o-aminophenol in 1 : 1 molar ratio. The synthesized Schiff base and its aryltellurium(IV) complexes were characterized by molar conductance, FT-IR, elemental analyses, SEM analyses, powder X-ray diffraction, 1 H NMR, 13 C NMR, UV-Vis, mass spectrometry, DFT studies and thermogravimetric (TG) analysis. The stoichiometry of the compounds and the percentages of the different elements present in all compounds were confirmed by the elemental analysis. The Schiff base ligand behaved as a monobasic tridentate ONO chelating agent. The molecular structures of the ligand (NMeIAP) and its complexes were optimized theoretically and their electronic properties such as HOMO and LUMO energies were determined by def2-SVP calculations. Molecular docking studies was used to determine probable and effective binding modes between ligand and different active sites of the receptors. X-ray diffraction revealed the crystalline nature of the Schiff base whereas the complexes are semi crystalline in nature. NMeIAP and aryltellurium(IV) complexes were tested against bacteria: B. cereus and X. campestris. Antifungal activity was determined against C. albicans, F. oxysporum and S. sclerotium.

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Metal chelates of some transition and non-transition metal ions with Schiff base derived from isatin witho-phenylenediamine

Cited by 17 publications

References 18 publications

Synthesis, Characterization, and Electrochemical Behaviour of Cobalt(II) and Nickel(II) Complexes with N2O2 Chelating Ligand 4,4′-(Biphenyl-4,4′-diyldinitrilo)dipentan-2-one

Synthesis, Characterization, and Electrochemical Behaviour of Cobalt(II) and Nickel(II) Complexes with N2O2 Chelating Ligand 4,4′-(Biphenyl-4,4′-diyldinitrilo)dipentan-2-one

Synthesis, Characterization and Electrochemical Behavior of CoII, NiII and CdII Complexes with N2O2 Donor Ligands Derived from 4,4′-Diaminobiphenyl and 2-Hydroxybenzaldehyde or 2,4-Dihydroxybenzaldehyde

Synthesis, Spectroscopic, Biological Activity, Molecular Docking and Density Functional Theoretical Investigations of Novel Tellurium(IV) Schiff Base Complexes

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