期刊論文
| 學年 | 97 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2009-02-01 |
| 作品名稱 | Crystal Structures, Magnetic Properties and Catecholase-like Activities of μ-Alkoxo-μ-carboxylato Double Bridged Dinuclear and Tetranuclear Copper(II) Complexes |
| 作品名稱（其他語言） | |
| 著者 | 陳芝佑; 呂建緯; 魏和祥 |
| 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 56(1), pp.89-97 |
| 摘要 | One -alkoxo-μ-carboxylato bridged dinuclear copper(II) complex, [Cu2(L1)( μ-C6H5CO2)] (1) (H3L1 = 1,3-bis(salicylideneamino)-2-propanol)), and twoμ-alkoxo-μ-dicarboxylato doubly-bridged tetranuclear copper(II) complexes, [Cu4(L1)2(μ-C8H10O4)(DMF)2]‧H2O (2) and [Cu4(L2)2(μ-C5H6O4)]2H2O 2CH3CN (3) (H3L2 = 1,3-bis(5-bromo-salicylideneamino)-2-propanol)) have been prepared and characterized. The single crystal X-ray analysis shows that the structure of complex 1 is dimeric with two adjacent copper(II) atoms bridged byμ-alkoxo-μ-carboxylato ligands where the CuCu distances and Cu-O(alkoxo)-Cu angles are 3.511 A and 132.8, respectively. Complexes 2 and 3 consist of aμ-alkoxo-μ-dicarboxylato doubly-bridged tetranuclear Cu(II) complex with mean Cu-Cu distances and Cu-O-Cu angles of 3.092 A and 104.2 for 2 and 3.486 A and 129.9 for 3, respectively. Magnetic measurements reveal that 1 is strong antiferromagnetically coupled with 2J = -210 cm-1 while 2 and 3 exhibit ferromagnetic coupling with 2J = 126 cm-1 and 82 cm-1 (averaged), respectively. The 2J values of 1-3 are correlated to dihedral angles and the Cu-O-Cu angles. Dependence of the pH at 25 C on the reaction rate of oxidation of 3,5-di-tert-butylcatechol (3,5-DTBC) to the corresponding quinone (3,5-DTBQ) catalyzed by 1-3 was studied. Complexes 1-3 exhibit catecholase-like active at above pH 8 and 25 C for oxidation of 3,5-di-tert-butylcatechol. |
| 關鍵字 | |
| 語言 | en_US |
| ISSN | 0009-4536 |
| 期刊性質 | 國內 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/50377 ) |