| 配位化学中的直线自由能关系(XIX) |
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| 引用本文： | 贤景春,朱守荣,林华宽,陈荣悌.配位化学中的直线自由能关系(XIX)[J].物理化学学报,1994,10(9):841-846. |
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| 作者姓名： | 贤景春 朱守荣 林华宽 陈荣悌 |
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| 作者单位： | Department of Chemistry,Nankai University,Tianjin 300071 |
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| 摘 要： | 前文1]曾报导了侧基二氧四胺大环配体的合成及表征．与普通配合物相比，大环多胺配合物具有较高的稳定性及惰性和奇特的空间构型，其过渡金属配合物具有特殊的性质和用途，如作酶的模型、氧的载体等．铜（Ⅱ）配合物可作超氧歧化酶（SOD）的模型，超氧离子是人体内的氧代谢产物，它在体内过量积累会引起多种疾病，超氧歧化酶对超氧离子起催化歧化作用，以维持机体的正常运行间，故这种大环多胺Cu（Ⅱ）配合物具有重要的生物功能及广阔的应用前景．本文研究了四种带侧基二氧四胺大环配体-5-取代邻菲罗啉（5－Xphen；L1）铜（Ⅱ）三元配合…
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| 关 键 词： | 配合物稳定性 线性自由能关系 二氧四胺大环 邻菲啰啉 |
| 收稿时间： | 1993-04-30 |
| 修稿时间： | 1993-06-25 |
Linear Free Energy Relationships of Complexes(XIX) |
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| Studies on the Stability of Copper.Linear Free Energy Relationships of Complexes(XIX)[J].Acta Physico-Chimica Sinica,1994,10(9):841-846. |
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| Authors: | Studies on the Stability of Copper |
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| Institution: | Department of Chemistry,Nankai University,Tianjin 300071 |
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| Abstract: | The stability constants of 5-substituted phenanthroline-12-(2'-hydroxy 1-5substituted benzy1)-1,4,7,10-tetraazacyclotr and copper(Ⅱ) ternary mixed ligand complex compounds were determined by pH method at 25.0±0.1 ℃ in the presence of 0.1 mol?dm-3KNO3. The form of coordination macrocyclopolyamine ligandcopper(Ⅱ)-5-substituted phenanthroline in aqueous solution were studied. The formation of d-π back bonding between copper(Ⅱ ) and nitrogen heteronuclear aromatic base has been proved. The tendency of stability of the ternary complexes have been explained by electron effects and d-π back bonding. |
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| Keywords: | Stability of complexes Macrocyclic dioxotetraamine 5-Substituted phenanthroline Linear free energy relationships |
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