Titre :	Synthése, caractérisation, étude électrochimique et applications biologiques d’un ligand base de Schiff bidentate et ses complexes métalliques de nickel et de cuivre
Type de document :	texte imprimé
Auteurs :	Nadji Hammadi ; Nadjet Douibi ; Zakia Messasma, Directeur de thèse
Editeur :	Sétif:UFA1
Année de publication :	2023
Importance :	1 vol. (81 f.)
Langues :	Français (fre)
Catégories :	Thèses & Mémoires:Chimie
Mots-clés :	Schiff base Cyclic voltammetry Antioxidant activity Antibacterial activity
Résumé :	Two bidentate Schiff base ligands H2L1 and H2L1' from 2,4-dihydroxy benzaldehyde and aniline and their Ni(II)L2and Cu(II)L2 complexes were synthesized and characterized by physical- chemical methods. namely the melting point, solubility, molar conductivity, UV-Vis spectrophotometry and IR-FT as well as a study of electrochemical behavior by cyclic voltammetry in organic medium. These synthesized compounds are stable and non-electrolyte. The cyclic voltammograms of the Ni(II)L2 and Cu(II)L2 complexes show that the Ni(II)L2 complex has a single cathodic peak and two anodic peaks while the Cu(II)L2 complex has two cathodic peaks and two anodic peaks. The biological tests show that all the compounds proved to possess good antioxidant activity by DPPH. The two complexes Ni(II)L2and Cu(II)L2 have lower IC50 values compared to the H2L1 ligand, while the H2L1' ligand has a lower IC50 value than H2L1 ligand and the complex Cu(II)L2 but high compared to the Ni(II)L2complex. The antibacterial test on the Gram+ and Gram– strains shows that the Schiff base ligands and their Ni(II)L2and Cu(II)L2 complexes are inactive
Côte titre :	MACH/0292
En ligne :	https://drive.google.com/file/d/1J3DyFcupCunjWpNtpWUX6byXYBrQFo0G/view?usp=drive [...]
Format de la ressource électronique :	pdf

Synthése, caractérisation, étude électrochimique et applications biologiques d’un ligand base de Schiff bidentate et ses complexes métalliques de nickel et de cuivre [texte imprimé] / Nadji Hammadi ; Nadjet Douibi ; Zakia Messasma, Directeur de thèse . - [S.l.] : Sétif:UFA1, 2023 . - 1 vol. (81 f.).
Langues : Français (fre)

Catégories :	Thèses & Mémoires:Chimie
Mots-clés :	Schiff base Cyclic voltammetry Antioxidant activity Antibacterial activity
Résumé :	Two bidentate Schiff base ligands H2L1 and H2L1' from 2,4-dihydroxy benzaldehyde and aniline and their Ni(II)L2and Cu(II)L2 complexes were synthesized and characterized by physical- chemical methods. namely the melting point, solubility, molar conductivity, UV-Vis spectrophotometry and IR-FT as well as a study of electrochemical behavior by cyclic voltammetry in organic medium. These synthesized compounds are stable and non-electrolyte. The cyclic voltammograms of the Ni(II)L2 and Cu(II)L2 complexes show that the Ni(II)L2 complex has a single cathodic peak and two anodic peaks while the Cu(II)L2 complex has two cathodic peaks and two anodic peaks. The biological tests show that all the compounds proved to possess good antioxidant activity by DPPH. The two complexes Ni(II)L2and Cu(II)L2 have lower IC50 values compared to the H2L1 ligand, while the H2L1' ligand has a lower IC50 value than H2L1 ligand and the complex Cu(II)L2 but high compared to the Ni(II)L2complex. The antibacterial test on the Gram+ and Gram– strains shows that the Schiff base ligands and their Ni(II)L2and Cu(II)L2 complexes are inactive
Côte titre :	MACH/0292
En ligne :	https://drive.google.com/file/d/1J3DyFcupCunjWpNtpWUX6byXYBrQFo0G/view?usp=drive [...]
Format de la ressource électronique :	pdf