稀土元素杂多钨锑酸铵的合成与性质研究

SYNTHESIS AND CHARACTERIZATION OF HETEROPOLY-TUNGSTOANTIMONITE(Ⅲ )COMPLEXES WITH LANTHANIDE ELEMENTS

首次报道了(NH_4)_(15)[Ln(NH_4Sb_9W_(21)O_(86)]·xH_2O(Ln^(3+)=La^(3+)、Ce^(3+)、Pr^(3+))和(NH_4)_(14)[Ln_2O(NH_4Sb_9W_(21)O_(86)]·XH_2O(Ln^(3+)=Gd^(3+)、Dy^(3+)、Yb^(3+))的合成方法,对这六种配合物进行了元素分析,确定了其组成,进行了IR、UV、TG等光谱性质研究.其结果表明配体结构在形成配合物的过程中基本上未发生变化.配合物IR光谱中γ(as)(w-od)和γas(w-ob)的向高频移动.

(NH_4)_(15)[(Ln(NH_4Sb_9W_(21l)O_(86))]·xH_2O (Ln^(3+)=La^(3+),Ce^(3+,Pr3+))and (NH_4)_(14)Ln_2O (NH_4Sb_9W_(21)O_(86))·xH_2O(Ln^(3+) = Gd^(3+),Dy^(3+),Yb^(3+))have been prepared and analysed. IR,UV and TG spectra have been reported,which show that the ligand is not changable while the complexes being formed, γ_(as)(W—Od) and γ_(as)(W—Ob)of the complexes have been moved to higher frequency, which is the evidence of complexes being formed.