| 铜(Ⅱ)-4-(喹啉-8′-甲基)-1,4,7,10-四氮杂环十三烷-11,13-二酮-α-氨基酸或5-取代邻菲罗啉两类三元配合物的稳定性研究 |
| STUDIESON THE STABILITY OF Cu(Ⅱ)-4-(QUINOLINE-8′-METHYL)-1,4,7,10 -TETRAAZACYCLOTRIDECANE-11,13-DIONE-α-AMINOACID AND 5-SUBSTITUTED PHENANTHROLINE TERNARY COMPLEXES |
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| 摘要: 用pH法在(25.0±0.1)℃,I=0.1mol·dm-3KNO3条件下,测定Cu(Ⅱ)-4-(喹啉-8′-甲基)-1,4,7,10-四氮杂环十三烷-11,13-二酮-α-氨基酸或5-取代邻菲罗啉两类三元配合物的稳定常数;研究了带甲基喹啉侧基大环多胺配体与Cu(Ⅱ)离子的配位能力、配位方式;发现这两类三元体系配合物有特殊的稳定性;而且它们的稳定性与配体α-氨基酸及5-取代邻菲罗啉酸碱强度之间的直线自由能关系的变化趋势相反;探讨了Cu(Ⅱ)和5-取代邻菲罗啉之间的d-p反馈π键及其取代基Hammett诱导效应的关系。 |
| 关键词: α-氨基酸 甲基喹啉侧基二氧四胺大环配体 5-取代邻菲罗啉 |
| 基金项目: 国家自然科学基金资助项目 |
| Abstract: The stability constants of Cu (Ⅱ)-4-(quinoline-8′-methyl)-1,4,7,10-tetraazacyclotridecane-11,13-dione-α-aminoacid (or 5-substituted phenanthroline) ternary complexeswere measured by p H titration method at(25.0±0.1)℃,I=0.1mol·dm-3 KNO3. The linear free energy relationships between the stability constants of the ternary complexesand the protonation constantsofligandsα-aminoacid(5-substituted phenanthroline) were demonstrated. The coordinating ability and mode of new macrocyclic dioxotetraamine ligands with quinoline-8′-methyl asa functional pendantwere studied.The d-p back bonding formed between Cu(Ⅱ) and 5-substituted phenanthroline,and Hammett parameters of substituents were discussed. |
| Keywords: dioxo tetraamine ligand with a methyl quinoline α-aminoacid 5-substituted phenanthroline |
| 投稿时间：1995-06-19 |
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| 于丽,卜显和,林华宽,安道利,陈荣悌.铜(Ⅱ)-4-(喹啉-8′-甲基)-1,4,7,10-四氮杂环十三烷-11,13-二酮-α-氨基酸或5-取代邻菲罗啉两类三元配合物的稳定性研究[J].无机化学学报,1996,12(2):139-144. |
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