波谱学杂志 ›› 1995, Vol. 12 ›› Issue (1): 23-27.

• 研究论文 • 上一篇    下一篇

邻啡啰啉─吡啶2,6二甲酸铕二、三元配合物的NMR研究

杨秋青1, 李林书2   

  1. 1. 河北师范大学实验中心, 石家庄 050016;
    2. 河北师范学院化学系, 石家庄 050091
  • 收稿日期:1994-02-28 修回日期:1994-05-06 出版日期:1995-02-05 发布日期:2018-01-17

NMR STUDIES OF BINARY AND TERNARY COMPLEXES FOR Eu WITH 1,10-PHENANTHROLINE AND PYRIDINE-2,6-DICARBOXYLIC ACID

Yang Oiuqing1, Li Linshu2   

  1. 1. Experiment Denter, Hebei Normal University, Shijiazhuang 050016;
    2. Department of Chemistry, Hebei Teacher's College, Shijiazhuang 050091
  • Received:1994-02-28 Revised:1994-05-06 Online:1995-02-05 Published:2018-01-17

摘要: 报道了稀上铕(Eu3+)与吡啶-2,6-二甲酸(H2DPC)及邻啡啉(Phen)形成的二元和三元固体配合物的制备.对它们进行了元素分析,确定该配合物的组成为二元Na3[Eu(DPC)3]·2H2O和三元NaEu(DPC)2·4H2O,对上述配合物的结构作了核磁共振氢谱(1H NMR)、碳谱(13CNMR)和氮谱(14N NMR)及红外光谱(IR)的研究.吡啶-2,6-二甲酸中的羧基以单齿配位(整个分子为三齿配位),二、三元配合物中铕的配位数分别为9和8.

关键词: 稀土铕, 吡啶-2,6-二甲酸, 邻啡啉, NMR, IR

Abstract: The preparation for binary and ternary solid complexes of rare earth Eu3+ with pyridine-2,6-dicarboxylic acid(H2DPC) and 1,10-Phenanthroline are reported in this article. Their compositions confrmed by elemental analysis, being binary Na3[Eu(DPC)3]·2H2O and ternary NaEu(DPC)2·Phen·4H2O. Their structures were studied by 1H、13C、14N N-MR and ER spectra. The pyridine-2,6-dicarboxylic acid is a tridentate ligand. Two coordination numbers of europium are nine and eight in binary and ternary complexes respectively.

Key words: Rare earth Eu, Pyridine-2,6-dicarboxylic acid, 1,10-phenanthroline, NMR, IR