| Cu（UTP）^2—和芳香氮碱混配配合物的分子内堆积作用 |
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| 引用本文： | 贺小凤,乐学义.Cu（UTP）^2—和芳香氮碱混配配合物的分子内堆积作用[J].中山大学学报(自然科学版),1997,36(6):114-116. |
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| 作者姓名： | 贺小凤 乐学义 |
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| 作者单位： | 中山大学化学系 |
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| 摘 要： | 用ｐＨ电位滴定法测定了三元混配配合物Ｃｕ（ＵＴＰ）Ｌ２－（Ｌ＝吡啶，３，４－二甲基吡啶，异喹啉）在水溶液中的稳定常数，并通过比较三元混配配合物Ｃｕ（ＵＴＰ）Ｌ２－和二元配合物ＣｕＬ２＋的稳定常数，指出在ＵＴＰ的嘧啶环和芳香氮碱的芳香环之间存在着堆积作用，而且在相同的实验条件下，Ｃｕ（ＵＴＰ）Ｌ２－分子内的堆积作用弱于Ｃｕ（ＡＴＰ）Ｌ２－分子内的堆积作用．
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| 关 键 词： | 三元混配配合物，UTP，芳香氮碱，堆积作用，稳定常数 |
Intramolecular Stacking Interaction in Ternary Complexes of Cu(UTP) 2- with Heteroaromatic N Base Ligands |
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| He Xiaofeng.Intramolecular Stacking Interaction in Ternary Complexes of Cu(UTP) 2- with Heteroaromatic N Base Ligands[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,1997,36(6):114-116. |
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| Authors: | He Xiaofeng |
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| Institution: | He XiaofengDepartment of Chemistry,Zhongshan University,Guangzhou 510275 Le Xueyi Ji Liangnian |
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| Abstract: | The stability constants of the ternary complexes Cu(UTP)L 2- ,where L=pyridine,3,4 lutidine and isoquinoline,have been determined in aqueous solution by potentiometrical method. Comparison of the stability constants of ternary complexes Cu(UTP)L 2- with those of the binary complexes CuL 2 ,shows stacking interaction between the aromatic ring of the N base and the pyrimidine moiety of UTP.The stacking interaction is much weaker than that in corresponding Cu(ATP)L 2- complexes under the same conditions. |
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| Keywords: | ternary mixed ligand complexes UTP heteroaromatic N base stacking interaction stability constants |
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