| Structure, Magnetic Properties and Catalase-like Activity of Asymmetric Dimanganese(Ⅲ,Ⅲ) Carboxylate Complexes with Salicylaldimine Ligands | |
|---|---|
| 學年 | 88 |
| 學期 | 1 |
| 出版（發表）日期 | 1999-12-01 |
| 作品名稱 | Structure, Magnetic Properties and Catalase-like Activity of Asymmetric Dimanganese(Ⅲ,Ⅲ) Carboxylate Complexes with Salicylaldimine Ligands |
| 作品名稱（其他語言） | |
| 著者 | 張國輝; Chang, K. H.; 魏和祥; Wei, Ho-hsiang; 洪當明; Hong, D. M. |
| 單位 | 淡江大學化學學系 |
| 出版者 | 臺北市：中國化學學會 |
| 著錄名稱、卷期、頁數 | Journal of the Chinese Chemical Society=中國化學會會誌 46(6), pp.911-916 |
| 摘要 | The crystal structures, magnetic properties, and catalase-like activities of assymmetric dinuclear manganese(III,III) complexes, [Mn2III,III(spa)2(m-Me3CCO2)(Me3CCO2)(CH3OH)] (1) and [Mn2III,III(vpa)2(m-Me3CCO2)(Me3CCO2)(CH3OH)] (2), (H2spa = 3-salicyclideneamino-1-propanol, H2vpa = O-vanillin), were reported. The crystal structures of complexes 1 and 2 consist of the same discrete asymmetric coordination environment of dinuclear clusters, where the two manganese atoms are bridged by two alkoxo oxygens of the spa or vpa ligands and one bidentate carboxylate ion, whereas an additional oxygen atom of monodentate carboxylate coordinated to the first metal ion, and the second metal ion was coordinated by one oxygen atom of the solvent CH3OH. Magnetic investigations (2-300 K) reveal an intramolecular antiferromagnetic spin exchange interaction with axial-field splittings: J = -12.3 cm-1 (D = -0.10 cm-1) and J = -13.3 cm-1 (D = -0.15 cm-1) for complexes 1 and 2, respectively. The complexes should show catalase-like activity for H2O2 disproportionation in CH3OH solvent at 25° with rate constants of k = 6.35 dm3mol-1s-1 and 6.20 dm3mol-1s-1 for complexes 1 and 2, respectively. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0009-4536 |
| 期刊性質 | 國內 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25254 ) |
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