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Abstract The thesis consists of three main chapters: Chapter I includes an introduction about copper and copper in biological systems followed by a literature survey concerning Copper-Dioxygen chemistry including cationic and neutral copper-dioxygen adducts. Chapter II includes the methodology used for the purification of solvents and gases used, preparation of complexes under study and the different tools used to characterize these complexes including Elemental Analysis, FT-IR, Electronic Spectra, EPR and Thermal analysis beside the method used for studying Catalytic Activity of the prepared complexes and Kinetics of oxidation of dinuclear copper (I) complexes by dioxygen. Chapter III includes Results and Discussion and can be summarized as follows: Copper(I) halides react separately with equivocal methylene chloride or nitrobenzenesolutions of N,N’-di-n-propylethylenediamine (DnPED) and N,N’-diethylpropane-l,3- diamine (DEPD) to give air sensitive colorless or pale yellow neutral bias/u-halo) dinuclear copper(I) complexes, [L(!l-X)Cu1h (D); X = Cl, Br and I for L = DnPED and X = Cl and Br for L = DEPD. |