| 大环多胺配体ODTH的合成及其性质的研究 |
| Studies on the Synthesis and Character of the Macrocylic Polyamine ODTH |
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| 摘要: |
| 关键词: 大环双核配体 电位滴定 质子化常数 稳定常数 |
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| Abstract: A new dinucleating 36-membered octoazadiphenol macrocyclic ligand， 3，6，9，12，20，23，26，29-octoaza-35，36-dihydroxy-16，33-dimethyl-tricyclo-hexatriacontane-1(34)，14，16，18(36)，31，32-hexene， ODTH， was synthe-sized by NaBH4 hydrogenation of the corresponding Schiff base obtained from the [2+2] condensation between triethylenetetraamine and diformyl-p-cresol. It was characterized by elemental analysis， IR， UV-Vis， 1H NMR and MS. The protonation constants of ODTH and the stability constants of its complexes with Cu(Ⅱ) in 1∶1 and 1∶2 system(metal-ODTH)， have been determined potentiometrically at 25.0℃ and μ=0.100 mol·L-1 KCl. Poten-tiometric equilibrium studies indicate that a variety of deprotonated and protonated mononuclear and dinuclear， as well as hydroxy-bridged complexes， form in the pH range 2～12 in aqueous solution. The species distributions and the characteristics of ODTH and the complexes are also described. |
| Keywords: macrocylic dinucleating ligands potentiometric titration protonation constants stability constants |
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| 摘要点击次数: 1183 |
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| 迟姚玲,王吉德,岳凡,陈玲.大环多胺配体ODTH的合成及其性质的研究[J].无机化学学报,2003,19(5):557-560. |
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