中文摘要：

合成了新型杂多配合物（NH4）3H3[Se2W3V2O21]·4H2O及其稀土盐LnH3[Se2W3V2O21]·xH2O（Ln=La^3＋、Ce^3＋、Pr^3＋、Nd^3＋、Sm^3＋），借助于元素分析、红外、紫外、热分析、摩尔电导、X射线粉末衍射对其进行了表征。并在此基础上推断了以上配合物的可能结构，结果表明，[Se2W3V2O21]^6-具有与[Se2Mo5O21]^4-类似的Standberg结构。

英文摘要：

Synthesis methods of tungstovandateselenite heteropoly complexs （NH4）3H3[Se2W3V2O21]·4H2O and LnH3[Se2W3V2O21] · xHaO （La^3＋、Ce^3＋、Pr^3＋、Nd^3＋、Sm^3＋） were reported. These complexs were characterized by IR, UV,XRD and TG-DTA. It was deduced that[Se2Mo5O21]^6-is Standberg structure.