الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
”A brief description of the overall work in this thesis can be summarized as follow : The main aim of the present thesis is focused on the preparation and characterization, elemental analyses, thermal (TGA and DTGA), spectral (IR, UV-Visible and 1HNMR), XRD and magnetic measurements of new complexes of sodium 4-hydroxy-3-((2-picolinoylhydrazineylidene)methyl) benzene-sulfonate (NaH2PH); sodium 4-hydroxy-3-((2-isonicotinoylhydrazineylidene)methyl) benzenesulfonate (NaH2IH) and sodium 4-hydroxy-3-((2-nicotinoylhydrazin-eylidene)methyl) benzenesulfonate (NaH2NH) with Cd(II), Ce(III), Co(II), Cu(II), Fe(III), Hg(II), Mn(II), Ni(II), and Pd(II) metal ions. Chapter one displays different publications concerning the complexation of water-soluble ligands with a great attention to the compounds similar to that investigated and their biological activities. = The second chapter covers the experimental part and illustrates the experiments used in this work. It includes a list of reagents, stock solutions along with the physical measurements and instrumentation, as well as the working procedures and a description for the preparation of the ligands and their metal complexes. This chapter includes the recommended procedures for the antioxidant and the anti-microbial activity of the prepared metal complexes. In addition, It contains full details about experimental conditions for potentiometric= determination of Cd(II) ion in petroleum water samples. Also, full details for fabrication of carbon paste electrodes.
➢ Chapter three deals with the results and discussion which are summarized to give the following information : 1- The proposed chemical formulae of the ligands and their metal complexes are in good agreement with the stoichiometries concluded from their analytical data of carbon, hydrogen, nitrogen, sulfur, chloride and metal contents. 2- All of complexes have high melting points (>300˚C) and insoluble in most organic solvents. 3- The coordination sites of the ligand, the nature of metal-ligand bonds and the existence of the solvated molecules have been elucidated using IR spectra. Different modes of chelation for the investigated ligands are suggested based on careful comparison between the spectra of the ligands and their corresponding complexes.
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