rmelkhatib

أ. د. رأفت محمد أحمد محمد أحمد الخطيب

استاذ - أستاذ بقسم الكيمياء

كلية العلوم

العنوان: قسم الكيمياء - كلية العلوم - جامعة سوهاج

18

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Schiff base complexes


2019-08-17 21:50:53 الكلمات المفتاحية Benzyl alcohol, H2O2, Schiff base complexes, catalytic oxidation,
Catalytic potential of new mononuclear Cr(III)-Schiff base complexes for selective oxidation of benzyl alcohol by H2O2
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 IR, 1H, 13C NMR SPECTRA AND CHN ANALYSIS. INTERACTION OF THE SYNTHESIZED LIGANDS WITH CHROMIUM NITRATE PRODUCED THREE NOVEL CR(III) COMPLEXES. THE STRUCTURE OF THE PREPARED CR(III) COMPLEXES ... إقراء المزيد

2018-11-27 22:52:23 الكلمات المفتاحية Schiff base complexes, binary solvents, antibacterial,
Hydrophilicity and acid hydrolysis of water-soluble antibacterial Iron(II) Schiff base complexes in binary aqueous solvents
Kinetics of acid hydrolysis of seven antibacterial iron(II) Schiff base complexes has been studied. The Schiff base ligands were derived from sodium 2-hydroxybenzaldehyde-5-sulfonate and a series of amino acids. The hydrolysis rate is studied by spectrophotometric method and compared with complex hydrophilicity. Addition of the organic co-solvent, dimethylsulfoxide or n-propanol, significantly accelerates the hydrolysis. إقراء المزيد

2018-10-28 18:12:23 الكلمات المفتاحية CuO NiO magnetic nanoparticles, Schiff base complexes,
The synthesis of CuO and NiO nanoparticles by facile thermal decomposition of metal-Schiff base complexes and an examination of their electric, thermoelectric and magnetic Properties
In this study, CuO and NiO NPs have been synthesized by facile thermal decomposition of Schiff base complexes and their physical properties have been examined. The synthesized CuO and NiO NPs are crystallized in polycrystalline monoclinic and cubic structures with average particle size 17 ± 0.4 and 62 ± 1 nm, respectively. The electrical conductivity measurements confirm that the conduction ... إقراء المزيد

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