Dawson结构稀土磷钼钨杂多化合物的合成及表征

PREPARATION AND CHARACTERIZATION \=OF DAWSON STRUCTURE HETEROPOLY \=COMPLEXES WITH LANTHANIDE PHOSPHORICMOLYBDENUMTUNGSTEN

用嵌入改性法合成了１０种通式为Ｋ１５Ｈ２［Ｌｎ（Ｐ２Ｗ１６ＭｏＯ６１）２］·ｎＨ２Ｏ，Ｌｎ＝（Ｌａ、Ｃｅ、Ｐｒ、Ｎｄ、Ｓｍ、Ｅｕ、Ｇｄ、Ｔｂ、Ｄｙ、Ｙｂ）的新型稀土杂多化合物，通过元素分析、ＩＲ和ＵＶ测定，证明所合成的１０种化合物同属于Ｄａｗｓｏｎ结构，利用ＴＧ－ＤＴＡ及变温ＩＲ技术考察了该系列化合物的热稳定性．

Ten kings of Lanthanide PhosphoricMolybdenumTungsten with Dawson structure formulated as K15H2 nH2O were synthesized by the method inlaying for the first time. Ten complexes were identified by IR and HV. The results show that the ten complexes have the same charaoteyistic of Dawson structure. The thermal decompositio temperature for these complexes were measured by DTATG and IR.