中华医学超声杂志

应用化学 ›› 1993, Vol. 0 ›› Issue (3): 8-11.

• 研究论文 • 上一篇    下一篇

稀土元素与3,4-二羟基苯甲醛缩邻氨基苯甲酸配合物的合成和表征

李冬成1, 姚克敏1, 曹美华1, 沈联芳2, 田清平2   

  1. 1. 浙江大学化学系 310027 杭州;
    2. 中国科学院武汉物理研究所波谱与原子分子物理实验室 武汉
  • 收稿日期:1992-06-24 修回日期:1992-12-02 出版日期:1993-06-10 发布日期:1993-06-10
  • 基金资助:
    国家自然科学基金;浙江省自然科学基金

SYNTHESIS AND CHARACTERIZATION OF LANTHANIDE COMPLEXES WITH THE SCHIFF BASE N-(3,4-DIHYDROXYBENZALIDENE)ANTHRANILIC ACID

Li Dongcheng1, Yao Kemin1, Cao Meihua1, Shen Lianfang2, Tian Qingping2   

  1. 1. Department of Chemistry, Zhejiang University, 310027 Hangzhou;
    2. Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Chinese Academy of Sciences, Wuhan
  • Received:1992-06-24 Revised:1992-12-02 Published:1993-06-10 Online:1993-06-10

PDF

479

被引次数

8

摘要： 本文在三乙胺存在下合成了3,4-二羟基苯甲醛缩邻氨基苯甲酸(H3L)与稀土元素的配合物。元素分析和摩尔电导值等确定其组成为[REL·nH2O],(RE=La、Pr、Nd、Sm,n=3;RE=Gd、Dy、Ho、Yb、Y,n=4)。钆和钇配合物皆属重稀土组。磁化率、TG-DTA、IR和NMR等结果表明,配合物中不含硝酸根离子,负三价的配体离子以一种“扭曲”的形式与稀土离子配位。

关键词: 稀土元素, 配合物, 二羟基苯甲醛缩邻氨基苯甲酸, 合成

Abstract: A Schiff base(H3L) has been obtained by the reaction of 3,4-dihydroxybenzaldehyde with anthranilic acid in ethyl alcohol. Nine complexes of this Schiff base with lanthanide ions have been synthesized in the presence of triethylamine. Elemental analysis and conductance measurements show that the complexes have the general formula of RE(L)nH2O, (RE=La,Pr,Nd,Sm,n=3;RE=Gd,Dy, Ho, Yb, Y,n=4), both Gd and Y complexes belong to that with heavier REs. No nitrate was found in the complexes. The complexes were characterized by magnetic susceptibility, TG-DTA, IR spectra and NMR measurements. The Ligand, which acts as quadriderntate, coordinates with RE(Ⅲ)in "gauche" form.

Key words: rare earth, complex, dihydroxybenzalidene anthranilic acid, synthesis

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