镧系元素钨硅杂多配合物异构体的合成与表征

Syntheses and Characterization of Heteropoly Tungstosilicate Isomers of Lanthanide Elements

关于[Ln(XM_(11)O_(39))_2]^(n-)类配合物合成有一些报道,但它们均未指出其中配体及所得配合物的构型,本文以α-和β_2-SiW_(11)O_(39)^(8-)为配体,首次合成了双-(11-钨硅酸根)合镧系元素钾盐的异构体并进行了结构表征。 1 实验部分 1.1 仪器和试剂 pHS-2型酸度计;883型笔录式极谱仪,384B型极谱分析仪。

The isomers of K13[Ln(α-,β2-SiW11O39)2]· xH2O(Ln = La,Ce,Pr,Nd,Sm,Gd,Er) were prepared, and characterized by elemental analysis, polarography, CV,UV,Vis,IR and 29Si NMR spectra, magnetic moments and thermal analysis. Their stabilities and relationship between the properties and structure are discussed.