镧系元素的杂多钨钛酸盐的合成与性质研究

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<正> 自1971年Peacock等首次合成以不饱和杂多阴离子作配体的镧系元素杂多配合物[Ln(XW_(11)O_(39)]~(n-)(X=Si,P)以来,这方面的报道较多。过渡元素的引入有可能改善这类化合物的某些活性,尤其是催化活性,但迄今为止尚未见报道,本文首次合成出以TiW_(11)O_(39)~(3-)为配体的镧系元素杂多钨酸盐K_(13)[Ln(TiW_(11)O_(39))_2]·xH_2O(Ln=La,Ce,Pr,Nd,Sm,Eu),并对其IR、UV光谱及热、磁性质进行
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