Catalytic Activity of Amino Acids-Metal Complexes in Oxidation Reactions
Catalytic Activity of Amino Acids-Metal Complexes in Oxidation Reactions作者机构：Department of Biotechnology “Professor Assen Zlatarov” University Burgas Bulgaria Department of Inorganic Chemistry “Professor Assen Zlatarov” University Burgas Bulgaria Department of Materials Science “Pro- fessor Assen Zlatarov” University Burgas Bulgaria
出 版 物：《Journal of Biomaterials and Nanobiotechnology》 (生物材料与纳米技术（英文）)
年 卷 期：2013年第4卷第2期
页 面：28-36页
主 题：DL-Lysine L-Methionine Metal Complexes Structure Properties Catalysis Oxidation
摘 要：Studies were carried out to determine the activity of complexes of the essential amino acids DL-Lysine and L-Methionine with heavy metals in the oxidation of cyclohexene with tert-butylhydroperoxide in toluene at 80°C. All complexes were prepared through interaction of metal ions and DL-Lysine and L-Methionine at room temperature in aqueous solutions. Only the complexes of Mo and W were obtained from acidic aqueous solution. These complexes were characterized by FT-IR, Moessbauer spectroscopy and EPR analysis. The products of the oxidation reactions were identified by GC/MS analysis. The complexes of Mo and V showed the best activity in the epoxidation reaction of cyclohexene in comparison with other complexes, such as Ni, Mn, Zn, Co, Cu, Cr, Fe and W. Using semi-empirical quantum-chemistry methods, the full energy of the Mo complexes was calculated and their probable structure is presented.
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