| Summary: | 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).
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