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SYNTHESIS, STRUCTURAL CHARACTERIZATION AND NEMATICIDAL STUDIES OF SOME NEW N2O2 SCHIFF BASE METAL COMPLEXES
Faculty
Science
Year:
2021
Type of Publication:
ZU Hosted
Pages:
Authors:
Sedik Attia Sedik Mohammed
Staff Zu Site
Abstract In Staff Site
Journal:
Bull. Chem. Soc. Ethiop. Printed in Ethiopia
Volume:
Keywords :
SYNTHESIS, STRUCTURAL CHARACTERIZATION , NEMATICIDAL STUDIES OF SOME
Abstract:
Cobalt(II), copper(II), yttrium(III), zirconium(IV), lanthanum(III) and uranium(VI) complexes of 1,4-di(2-hydroxybenzylidene)thiosemicarbazide (H2L) were prepared and characterized. The proposed structures were determined from their elemental analyses, molar conductivities, magnetic moment, IR, Proton NMR, UVVis., mass spectra, X-ray diffraction and thermal analyses measurements. The high conductance data supply evidence for the electrolytic nature of the complexes. The changes in the selected bands in IR of Schiff base ligand upon coordination showed that Schiff base exhibits as a neutral tetradentate manner with oxygen and nitrogen donor sites. The complexes are thermally steady at room temperature and break up to two or three steps. The kinetic and thermodynamic parameters of complexes have been determined by using Coats-Redfern and Horowitz-Metzeger methods at n=1 and n≠1 and values suggest more ordered activated complex formation. The calculated bond length and force constant, F(U=O), in the uranyl complex are 1.744 Å and 664.886 Nm-1. The nematicidal activity of free Schiff base and all complexes were investigated and showed a low inhibition percentage (%I) of complexes compared with H2L.
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Sedik Attia Sedik Mohammed, "First Report on Several NO-Donor Sets and Bidentate Schiff Base and Its Metal Complexes: Characterization and Antimicrobial Investigation", MDPI, 2023
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Sedik Attia Sedik Mohammed, "Synthesis and Spectral, Thermal and Antimicrobial Investigation ofMixed LigandMetal Complexes of N-Salicylidene Aniline and 1,10-Phenanthroline", MDPI, 2023
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Sedik Attia Sedik Mohammed, "Spectroscopic Investigation of New Schiff Base Metal Complexes", IJAR, 2014
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Sedik Attia Sedik Mohammed, "Spectroscopic, structural and antibacterial evaluation of some lomefloxacin metal complexes.", IJAR, 2014
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Abd El Shafey Ibrahim Ahmed Ibrahim, "Optimizing halogenation conditions of N-halamine polymers and investigating mode of bactericidal action", Copyright © 2009 Wiley Periodicals, Inc., 2009
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