Synthesis , Structures and Catalase-like Activity of Manganese Complexes

• Main Authors: Ming-Cheng Chen, 陳明正
• Other Authors: Ho-Hsiang Wei
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/30455998018817721664

碩士 === 淡江大學 === 化學學系碩士班 === 96 === In this thesis , the following complexes have been prepared from manganese complexes with Schiff-base and catecholate ligands : (1)[Mn(L1)(C6Br4O2)] (2)[Mn2(L2)2] (3)[Mn(L3)] (4)[Mn(3,5-DTBC)4] L1: 2-{(E)-[2-(2-aminoethylamino)ethylimino]methyl}-4-bromophenol L2: N,N,-bis(5-bromosalicylidene)-ethane-1,2-diamine L3: N,N,-bis(5-chlorosalicylidene)-ethane-1,2-diamine 3,5-DTBC = 3,5-di-tert-butylbenzene-catechol Temperature dependence of maganetic susceptibilities of these complexes were measured by SQUID magnetometer , showing the axial field symmetry of spin-spin interaction (D) of Manganese (Ⅲ) ion in octahedral distorted environments . All complexes exhibit catalase activities for the disproportionation of H2O2 into H2O and O2 (H2O2 catalase activity).