Synthesis of ternary complexes of rare earth perchlorate with L-alanine and imidazale and the infrared spectral study

被引：0

作者：

Li, RP ^{[1
]}

Fan, QF ^{[1
]}

Guo, JX ^{[1
]}

机构：

[1] China Three Gorges Univ, Chem & Life Sci Coll, Yichang 443000, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2003年 / 23卷 / 02期

关键词：

rare earth; perchlorate; L-alanine; imidazale; complex;

D O I：

暂无

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The title complexes RE(Ala)(4)(IM)(ClO4)(3) . 2H(2)O (RE = Sm, Pr or Nd) were synthesized by the reaction of rare earth perchlorates with alanine and imidazale in aqueous solution. The infrared spectra of the complexes were measured and their principal IR bands were assigned. The results show that alanine molecules are zwitterions in the complexes and coordinate with rare earth ions through carboxyl groups, and with the atomic weight of rare earth increasing, the ionization of the coordinate band decreases, while the covalence increases. Imidazale was found to coordinate with rare earth by nitrogen atom.

引用

页码：288 / 290

页数：3