镧系元素的双(九钨二钒)杂多酸钾的合成与表征

Synthesis and Characterization of Potassium Heteropoly-Tungstovanadates of Lanthanide Elements

报道了镧系元素钨钒杂多配合物的合成方法。元素分析和热重分析确定其通式为：Ｋ１０Ｈ７〔Ｌｎ（Ｖ２Ｗ９Ｏ３７）２〕·ｘＨ２Ｏ（Ｌｎ＝Ｓｍ３＋、Ｅｕ３＋、Ｇｄ３＋）。利用红外（ＩＲ）、紫外（ＵＶ）和Ｘ射线衍射谱对其进行了表征。配合物的热解性质研究表明，其分解温度范围为４００～４５０℃。

The synthesis method of the potassium heteropoly-tungstovanadates of the lanthanide elements has been reported.Their general formula were determined as K 10 H 7 Ln(V 2W 9O 37 ) 2 ·xH 2O(Ln=Sm 3+ ,Eu 3+ ,Gd 3+ ) by using elemental and TG analysis. These complexes have been characterized by IR、UV and XRD. Their decomposition temperature range is 400～450℃。