الفهرس 
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Abstract
Many studies mentioned that our world will be almost run out of fossil oil in about 50 years. So, there are crucial needs to search for alternatives. The most important candidate for that is renewable energy and this due to several factors including economy, environment, and security. In the meanwhile, one of the biggest technological challenges faced by the chemists and scientists these years is the development of renewal energy. However, many scientists believe that water in presence of sunlight and some cheap catalysts can be split and produce H2 fuel. So, these years our ’orld is in competition to prepare some complexes that can be tried and
used as catalysts to fulfill that job. On the other hand, it is well known that N, 0, and S atoms play an important role in coordination chemistry. Moreover, 1,2,4-triazole derivatives have different bonding modes concerning their coordination to the metal centers, and they have been proven that they are biologically active and some of them might be used as antibacterial and antifungal reagents. The previously mentioned factors motivated and forced us to do chemistry in these two different areas. It is noteworthy that this dissertation entitled ”Physicochemical Studies on Some Schiff Bases and Their Complexes with Some Transition Metal Ions” comprises three chapters. Chapter 1 (General introduction) comprises the introduction which presents brief accounts on the importance of the Schiff base ligands, their preparation, and their metallation by using different routes. This introduction also includes some literature survey on acyclic Schiff bases, and triazole derivatives, and their complexes as well. Lastly, this chapter contains some applications of the Schiff base ligands and their complexes. Chapter 2 (Studies on synthesis of a new tripodal ligand and its metallation) contains a very short introduction on renewable energy and the main players in this field and the idea of how water can be used as a fuel. This chapter also includes the used chemicals and equipment, along with the experimental methods used for preparation and purification of the new tripodal Schiff base ligand that we made. It is noteworthy that the tripodal ligand was synthesized through four steps, and this ligand has a new system regarding to the functional groups that it carries. However, the percentage yield obtained for the tripodal ligand was 91.8% and it is very important to mention that this ligand was prepared from cheap chemically starting materials. Furthermore, many methodologies have been tried to metallate this new ligand. The only methodology that could do this was the one that the dimanganese organometallic precursor has been used. Plus, the percentage yield obtained for the dimanganese complex was about 83.20%. The identification of the synthesized dimanganese complex, by using the elementary, magnetism as well as spectroscopic (IR, ’H-NMR, and UV-Vis) measurements, was presented and discussed. However, the preparation of some metal precursors was explained and discussed as well. Finally, the conductometric and potentiometric titrations of the new ligand with Mn2+ ions were presented and discussed. Chapter 3 (Studies on synthesis of some Schiff base-Triazole ligands and their metallation) includes a brief introduction on the importance of the triazole derivatives and their complexes in coordination chemistry and in our life as well. This chapter also includes the used deutrated solvents and equipment, and the experimental procedures used for