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Interaction between ligands in ternary complexes of cadmium(II) with phenanthroline and phenylalkylmalonates in solution
Guan, W.; Ge, C. H.; Zhang, X. D.; Tong, J.; Liu, Q. T.
2006-11-01
发表期刊RUSSIAN JOURNAL OF COORDINATION CHEMISTRY
卷号32期号:11页码:811-814
文章类型Article
摘要The formation and stability of the ternary complexes of cadmium(II) with phenanthroline and malonate, phenylmalonate, benzylmalonate, 2-phenylethylmalonate, and 3-phenylpropylmalonate are studied by the potentiometric pH-titration technique in 40% (v/v) dioxane-water at 25 degrees C and 0.1 mol/l ionic strength (NaNO3). In all systems, there are stable ternary complexes. The complexes possess enhanced stability relative to their statistical values. The possible reasons that lead to these results are discussed in terms of pi-electron back donation from metal ions to ligands and the intramolecular ligand-ligand aromatic ring stacking interaction. H-1 NMR measurements are used to demonstrate the aromatic ring-stacking interaction. The relative contribution of each interactions to the enhanced stability is also estimated. The results show that there are two weak interactions simultaneously observed in these ternary complexes. The interaction strength of aromatic ring stacking Z Z, in the ternary complexes increases in the phenylalkylmalonate ligand order: L-0 < L-1 < L-2 approximate to L-3 (L-0 phenylmalonate, L-1=benzylmalonate, L-2=2-phenylethylmalonate, L-3=3-phenylpropylmalonate).
WOS标题词Science & Technology ; Physical Sciences
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Inorganic & Nuclear
WOS记录号WOS:000242235300007
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5773
专题青海盐湖研究所知识仓储
作者单位1.Liaoning Univ, Dept Environm Sci, Shenyang 110036, Peoples R China
2.Liaoning Univ, Inst Chem Sci & Engn, Shenyang 110036, Peoples R China
3.Chinese Acad Sci, Inst Salt Lakes, Xining 810008, Peoples R China
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GB/T 7714
Guan, W.,Ge, C. H.,Zhang, X. D.,et al. Interaction between ligands in ternary complexes of cadmium(II) with phenanthroline and phenylalkylmalonates in solution[J]. RUSSIAN JOURNAL OF COORDINATION CHEMISTRY,2006,32(11):811-814.
APA Guan, W.,Ge, C. H.,Zhang, X. D.,Tong, J.,&Liu, Q. T..(2006).Interaction between ligands in ternary complexes of cadmium(II) with phenanthroline and phenylalkylmalonates in solution.RUSSIAN JOURNAL OF COORDINATION CHEMISTRY,32(11),811-814.
MLA Guan, W.,et al."Interaction between ligands in ternary complexes of cadmium(II) with phenanthroline and phenylalkylmalonates in solution".RUSSIAN JOURNAL OF COORDINATION CHEMISTRY 32.11(2006):811-814.
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