摘 要:本论文主要以三缺位Keggin结构的多金属氧酸盐PW9为原料,通过与稀土离子Tb3+ 作用在一定条件下合成出夹心型的稀土磷钨酸盐Tb(PW9)2。并以Tb(PW9)2为构筑块,通过常规水溶液合成方法,与过渡金属离子Cu2+ 结合制备了夹心型稀土磷钨酸盐的衍生物,并通过红外光谱对该化合物的结构进行了测试和表征。通过红外光谱分析推测这种夹心型稀土磷钨酸盐的衍生物中的阴离子都保持了多金属氧酸盐PW9的缺位Keggin构型,并且也推断出L-赖氨酸也参与了配位。关键词:多金属氧酸盐;夹心型磷钨酸盐;稀土;合成7316
The Synthesis and Characterization of Sandwich -Type Polyoxometalates Derivatives
Abstract: The sandwich-type polyanion Tb(PW9)2 was formed by using the trivacant Keggin-type polyanion PW9 and rare earth ions Tb3+ as raw materials.Then through the conventional solution synthesis method, one phosphotungstate’ derivative based on the transition metal ion Cu2+ and sandwich-type rare earth phosphotungstate -containing polyanion have been prepared and characterized by infrared spectrum (IR). The IR spectrum analysis showed that the polyanions in the product retain the trivacant Keggin-type structure PW9, and that the L-lysine is also involved in the coordination.
Key Words: Polyoxometalates; Sandwich-type Phosphotungstate; Rare Earths; Syntesis
目 录