高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (3): 299.

• 论文 • 上一篇    下一篇

镧系硅钨杂多酸胍盐的合成及物性研究

翟应离, 陈学年, 谭民裕, 王秋莹   

  1. 兰州大学化学系, 730000
  • 收稿日期:1989-08-15 出版日期:1991-03-24 发布日期:1991-03-24
  • 通讯作者: 王秋莹

Studies on Synthesis and Characterization of Guanidinium Salts of Lanthanides-Hctcropolytungstosilicate

Zhai Ying-li, Chen Xiue-nian, Tan Min-yu, Wang Qiu-ying   

  1. Department of Chemistry, Lanzhou University, Lanztiou, 730000
  • Received:1989-08-15 Online:1991-03-24 Published:1991-03-24

摘要: 合成了LnL(L代表配体)型镧系硅钨杂多配合物K5[LnSiW11O39],再分别与盐酸胍盐反应,得(CN3H5)5[LnSiW11O39]·nH2O。阳离子交换试验证明Ln3+居于配合物内界。用IR、UV、DSC-TGA和XRD分析,对杂多配合物进行了表征。

关键词: 铜系元素, 杂多配合物, 胍盐, 合成

Abstract: Potassium salts of lanthanides-heteropolytungstosilicate,LnL, were synthesised in weak basic solution in the presence of Ln3+(Ln=La, Pr. Nd, Sm-Yb). Then,they, were turned into their guanidinium salts, (CN3H6)5[LnSiW11O39] nH2O, by the way of metathesis reaction. It is shown that Ln3+is in the inner-coordination sphere according to the resuluts of cation exchange. The guanidinium salts of lanthanides-heteropolytungstosilicate were characterized by IR,UVspectra, DSC-TGA and X-ray powder diffraction.

Key words: Lanthanide element, Heteropoly-coordination compound, Guanidinium salt, Synthesis

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