| 重水溶液中稀土-吡啶-2,6-二羧酸配合物的第二配位圈^1HNMR顺磁位移 |
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| 引用本文： | 毛希安,沈联芳,高原,倪嘉缵.重水溶液中稀土-吡啶-2,6-二羧酸配合物的第二配位圈^1HNMR顺磁位移[J].化学学报,1987,45(9):910-912. |
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| 作者姓名： | 毛希安 沈联芳 高原 倪嘉缵 |
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| 作者单位： | 中国科学院武汉物理研究所;中国科学院长春应用化学研究所 |
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| 摘 要： | 对稀土-吡啶-2,6-二羧酸(DPA)配合物Ln(DPA)3进行了NMR研究并观察到了由溶剂分子形成的第二配位圈的顺磁位移效应.
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| 关 键 词： | 吡啶P 羧酸 重水 质子磁共振谱法 磁导率 稀土金属络合物 化学位移 配位场理论 顺磁性 |
1H NMR paramagnetic shifts due to the second coordination sphere of lanthanide(III)-pyridine-2,6-dicarboxylate complexes in deuterated aqueous solutions |
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| MAO XIAN,SHEN LIANFANG,GAO YUAN,NI JIAZUAN.1H NMR paramagnetic shifts due to the second coordination sphere of lanthanide(III)-pyridine-2,6-dicarboxylate complexes in deuterated aqueous solutions[J].Acta Chimica Sinica,1987,45(9):910-912. |
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| Authors: | MAO XIAN SHEN LIANFANG GAO YUAN NI JIAZUAN |
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| Abstract: | The 1H-NMR paramagnetic shifts due to the 2nd coordination sphere of Ln(DPA)3 (where Ln = La, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb and Lu; and DPA = pyridine-2,6-dicarboxylic acid) in D2O were studied. The phenomena was explained by a pseudo-contact interaction and 4f electron clouds. The shortest distance between the central ion and the 2nd coordination sphere is 3.4 ? |
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| Keywords: | PYRIDINE P CARBOXYLIC ACID HEAVY WATER PROTON MAGNETIC RESONANCE SPECTROMETRY MAGNETIC PERMEABILITY RARE EARTH METAL COMPLEX CHEMICAL SHIFT LIGAND FIELD THEORY PARAMAGNETISM |
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