ahmedabudief

Dr. Ahmed Mohammed Abu-Dief Mohammed

Assistant Professor - Assistant professor of Inorganic and Physical Chemistry

Faculty of science

Address: Behind hospital of Sohag University - Ali Ebn Abi Taleb Street

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Publications Which contain the keyword: tetra-dentate


High Selectivity on The epoxidation of Cyclooctene Catalyzed by Tri-and Tetra-Dentate Imine Vanadyl Chelates Using H2O2
High yield of VO(II) chelates incorporating new imine ligands were obtained by the condensation reaction between 2-hydroxynaphthaldehyde or 3-ethoxysalicylaldehyde and o-phenylenediamine s in 1:1 molar ratio. All the complexes are non– hygroscopic in nature and stable to the atmosphere. The synthesized ligands and the isolated imine chelates have been characterized various physico-chemical techniques. The results obtained from these studies and ... Read more

Some New Cr (III)  Mononuclear Complexes encompassing Tri- and Tetra-dentate Imine Ligands: Synthesis, Spectral Characterization and High Selectivity in Catalytic Oxidation of Benzyl alcohol
IN THE PRESENT CONTRIBUTION, SOME NOVEL CR (III) COMPLEXES WERE SYNTHESIZED FROM TRI- AND TETRA-DENTATE IMINE LIGANDS DERIVED FROM 3-ETHOXYSALICYLALDEHYDE OR 2-HYDROXYNAPHTHALDEHYDE WITH 2-AMINOPHENOL OR O-PHENYLENEDIAMINE. ALL THE PREPARED LIGANDS WERE AUTHENTICATED BY 1H, 13C NMR AND IR SPECTRA. INTERACTION OF THE SYNTHESIZED LIGANDS WITH CHROMIUM NITRATE PRODUCED THREE NOVEL CR(III) COMPLEXES. THE STRUCTURE OF THE PREPARED CR (III) COMPLEXES ... Read more