الفهرس 
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Abstract
This thesis includes applying the cyclic voltammetry technique in 0.1M KCl with the use of the glassy carbon as a working electrode to study the redox behavior for solutions of some salts like cobalt chloride, copper acetate in absence and presence of ceftriaxone disodium. Also, the study of palladium chloride which was used in low concentrations to study the catalytic hydrogen wave in 0.1M KCl which was dissolved in mixed solvents of water and ethanol by percentages (0%, 33.3%, 50%) (W/W) but the high concentrations were used to study the redox behavior of palladium in absence and presence of cefotaxime sodium. This study was performed with the regard of the temperature. The results obtained were used to calculate the diffusion coefficients, rate of electron transfer constant, surface coverage, amount of cathodic and anodic electricity as well as thermodynamic parameters like stability constant and Gibbs free energy. The cobalt and copper ceftriaxone complexes were prepared separately by 1:1 (metal: ligand). Also, the cefotaxime palladium and copper complexes resulted by applying the same manner. The formation of the complexes was affirmed by performing various measurements and analyses. The theoretical studies of the molecular modeling for the prepared complexes were carried out by applying DFT calculations by Materials studio. The results demonstrated the stability and the activities of the complexes. Finally, this thesis includes the study of the biological activity for the antibiotics and their prepared complexes against Gram-negative bacteria, Gram-positive bacteria and (Candida albicans) fungi. The resulted data indicated the higher activity of the antibiotic and their copper complexes compared to other complexes.