6-(5'-(8'-羟基喹啉)亚甲基)-1,4,8,11-四氮杂十一烷-5,7-二酮·5-取代邻菲罗啉合铜(Ⅱ)-铜(Ⅱ)或钴(Ⅱ)双核混配体系的稳定性研究 |
Stability Studies of Dinuclear Mixed-Coordinated Systems of 6-(5'-(8'-Hydroxyquinolinic)Methylene-1,4,8,11-Tetraazaundecane-5,7-Dione,5-Substituted 1,10-Phenanthroline-Copper (Ⅱ) with Cu2+ or Co2+ Complexes |
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摘要: 本文合成了8-羟基喹啉取代的二氧四肢开链配体L并进行了红外、元素分析、核磁和质谱表征。在(25±0.l)℃,I=0.1mol·dm-3NaNO3条件下,运用pH电位滴定技术测定了双核混配体系Cu(Ⅱ)(或Co(Ⅱ)-L-5-取代邻菲罗啉合铜(Ⅱ)配合物的稳定常数,并从滴定数据、物种分布曲线和文献结果对配合物可能的配位方式进行了讨论。我们发现在Cu(Ⅱ)-L-5.取代邻菲罗啉体系的质子化过程中,开链二氧四胺与Cu(Ⅱ)存在微弱配位,而邻菲罗琳和8-羟基喹啉与过渡金 |
关键词: 双核配合物 稳定常数 8-羟基喹啉 5-取代邻菲罗啉 |
基金项目: 国家自然科学基金资助项目(No.29971018);天津市教委自然科学基金资助项目(No.990711). |
Abstract: C-functionalized dioxotetraamine ligand L, 6- (5 '-(8'-hydroxyquinolinic)-methylene)-1, 4, 8, 11-tetraazaundecane-5, 7-dione, containing two independent chelating groups, was synthesized and characterized by elemental analysis, 1H MNR, IR and MS spectra.At 25.01 0.1℃, I = 0.1mol·dm-3 NaNO3, pH titration has been performed to study the stability properties of L-5-substituted-1, 10-phenthamroline-Cu (Ⅱ) with proton, copper (Ⅱ) and cobalt (Ⅱ), respectively.The ternary complexes have been show to possess interesting property due to the coordination interaction of the three chelating groups, 5-substituted-1, 10-phenanthroline, 8-hydroxyquinoline and dioxotetraamine.In addition, the possible coordination structures for the titration species have been suggested on the basis of titration results and literature report. |
Keywords: dinuclear complex stability constants 8-hydroxyquinoline 5-substituted 1,10-phenanthroline |
投稿时间:2001-03-01 修订日期:2001-04-09 |
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赵小军,苏循成,林华宽,朱守荣,孙宏伟,陈荣悌.6-(5'-(8'-羟基喹啉)亚甲基)-1,4,8,11-四氮杂十一烷-5,7-二酮·5-取代邻菲罗啉合铜(Ⅱ)-铜(Ⅱ)或钴(Ⅱ)双核混配体系的稳定性研究[J].无机化学学报,2001,17(3):331-337. |
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