Acta Chimica Sinica ›› 1996, Vol. 54 ›› Issue (6): 581-584. Previous Articles     Next Articles

Original Articles

^1^3C NMR研究稀土柠檬酸配合物的溶液配位结构

袁春波;赵大庆;吴亦洁;裴奉奎;刘举正;倪嘉缵   

  1. 中国科学院长春应用化学研究所;中国科学院稀土化学与物理开放实验室;东南大学化学化工系;东南大学分子与生物分子电子学开放实验室
  • 出版日期:1996-06-15 发布日期:1996-06-15

^1^3C NMR study on the aqueous structure of lanthanide citrate complexes

YUAN CHUNBO;ZHAO DAQING;WU YIJIE;PEI FENGKUI;LIU JUZHENG;NI JIAZUAN   

  • Online:1996-06-15 Published:1996-06-15

The aqueous complexation of lanthanide complexes of citrate in pH 7.4 solutions has been studied by using lanthanide-induced shift and relaxation times measurement methods. These results indicate that citrate coordinate via 3-hydroxyl and 3-carboxylate groups with lanthanide ions and form 1:2 (Ln/cit) isostructural complexes through lanthanide series. We suggest a new coordination geometry which is different from that described in literature.

Key words: C13 NMR SPECTROMETRY, CITRIC ACID, RARE EARTH METAL COMPLEX, COORDINATE CHEMISTRY

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