中华医学超声杂志

应用化学 ›› 1990, Vol. 0 ›› Issue (5): 58-63.

• 研究论文 • 上一篇    下一篇

磷酸二甲酯稀土配合物的合成与红外光谱研究

李来明1, 曾广赋1, 李涵1, 马爱增2   

  1. 1. 中国科学院长春应用化学研究所 长春 130022;
    2. 吉林农业大学土化系 长春
  • 收稿日期:1989-10-30 修回日期:1990-03-12 出版日期:1990-10-10 发布日期:1990-10-10
  • 基金资助:
    国家自然科学基金

SYNTHESES AND INFRARED SPECTRA OF RARE EARTH COMPLEXES WITH DIMETHYL PHOSPHATE

Li Laiming1, Zeng Guangfu1, Li Han1, Ma Aizeng2   

  1. 1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022;
    2. Department of Soil Chemistry, Jilin University of Agriculture, Changchnu
  • Received:1989-10-30 Revised:1990-03-12 Published:1990-10-10 Online:1990-10-10

PDF

410

被引次数

4 | 3

摘要： 本文用稀土氯化物与磷酸三甲酯反应制备了一系列标题配合物RE(DMP)3(RE=Sm,Eu,Ho,Yb,Lu)。配合物的热分解是一步完成的,由残渣的红外光谱确认其热分解产物为稀土偏磷酸盐。测定了配合物的红外光谱,对其主要吸收谱带进行了归属。红外光谱表明标题配合物与Sm(DMP)3单晶应具有相同的结构类型,每个稀土原子通过双“O—P—O”桥与邻近的三个稀土原子连接,形成“双桥二十四元环”的环会环的网络结构。RE—O键基本上是离子键。

关键词: 磷酸二甲酯, 稀土配合物, 热分解, 红外光谱

Abstract: The solid complexes of Sm, Eu, Ho, Yb and Lu with dimethyl phosphate(DMP)were synthesized by reaction of trimethyl phosphate(TMP)with corresponding rare earth chlorides. The mechanism of thermodecomposition of the complexes has been studied. Their infrared spectra were measured and main infrared absorption bands were assigned. The result showed that the polymeric title complexes are extremely similar to Sm(DMP)3 single crystal in the spectral properties of RE-O bond and PO2 group. Thus these complexes may have the samemolecular configuration, i.e. dimetbyl phosphate anions coordinate with lanthanide atomsthrough double O-P-O bridges to form a special network of rings-linking-rings, each of which consists of twenty-four atoms. The RE-O bond of RE(DMP)3 is principally ionic.

Key words: dimethyl phosphate, rare earth complex, thermo-decomposition, infrared spectrum

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