Demetallation of organoiron complexes

• Main Authors: Lin-May Ling, 林美齡
• Other Authors: none
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/81653113647403108683

碩士 === 國立中央大學 === 化學研究所 === 91 === Abstract ： The demetallation of organoiron complexes is usually achieved under strong oxidizing reaction conditions. We found that the organoiron complexs , that oxidation state from +2 to 0, all react with bpy and get stable Fe(bpy)32+ complex，and don’t need strong acid or oxidation reagent. Therefore, we have design a series of experiment to investigate and discuss. Recently , polydentate ligands containing N-donor heterocyclic rings have played an important role in the development of coordination chemistry and continued to be widespread interest , particularly centered upon complexes of diimine-type ligands, 2,2’-bipyridine(bpy), 1,10-phenanthroline (phen) . But most of these complexes, were synthesized from metal ion, seldom people use this kind of concept to synthesize the Fe(bpy)32+. We try to understand the role of bpy, not only for a good coordination ligand, but also the possibility of the redutivity for bpy induced the demetallation of orgnoiron complex. We used the FT-IR、1HNMR、UV-Vis、CV to investigate the chemistry. From these data, we have confirm the demetallation product is Fe(bpy)32+. And we also use 1HNMR、UV-vis、RDE to monitor the change of reaction try to understand the mechanism with 17e-19e mechanism. We also extended our interests to other phen type ligand, and synthesized the Fe2+ complexes with phen type ligand. Use UV-vis and CV to investigate the difference.