| 四氮杂大环与镧系金属配合物的热力学研究 |
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| 引用本文： | 毕建洪,赵祥大,倪诗圣,谢复新.四氮杂大环与镧系金属配合物的热力学研究[J].物理化学学报,1997,13(11):1049-1051. |
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| 作者姓名： | 毕建洪 赵祥大 倪诗圣 谢复新 |
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| 作者单位： | Department of Chemistry,Anhui Institute of Education,Hefei 230061,Department of Chemistry,Anhui University,Hefei 230039 |
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| 基金项目： | 国家和安徽省自然科学基金 |
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| 摘 要： |
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| 关 键 词： | N-四乙酸基取代四氮杂大环 镧系配合物 稳定常数 焓 |
| 收稿时间： | 1997-05-22 |
| 修稿时间： | 1997-08-15 |
Thermodynamic Studies on Lanthanide Complexes with Tetraazamacrocycle |
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| Bi Jian-Hong,Zhao Xiang-Da,Ni Shi-Sheng,Xie Fu-Xin.Thermodynamic Studies on Lanthanide Complexes with Tetraazamacrocycle[J].Acta Physico-Chimica Sinica,1997,13(11):1049-1051. |
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| Authors: | Bi Jian-Hong Zhao Xiang-Da Ni Shi-Sheng Xie Fu-Xin |
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| Institution: | Department of Chemistry,Anhui Institute of Education,Hefei 230061|Department of Chemistry,Anhui University,Hefei 230039 |
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| Abstract: | The stability constants of the 1:1 complexes of H4L2 (5,12-dipheny1-7, 14-dimethyl-1,4,8,11-tetraazamasrocyclotetradecane-N', N", N"',N""-tetraacetic acid) with Ln3+ (Ln=La, Nd, Pr, Sm, Eu, Gd, Dy, Yb) were determined by potemtiometric titrations in 0.5mol?L-1 KCl at 40±0.1℃, 50±0.1℃ and 60±0.1℃ respectively. The △H, △S and △G of the coordination reactions of H4L2 with Ln3+ were given. Influences of the steric effect and temperature changes on the stability lanthanide complexes were discussed thermodynamically. |
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| Keywords: | N-tetraacetic acid substituted tetraazamacrocycle Lanthanide complex Stability constant Enthalpy |
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