【摘要】 制备了两系列稀土元素钼钒硅杂多酸盐。研究了它们的振动光谱、电子光谱、X-射线粉末衍射及热解性质,通过化学分析和热重分析,确定了化合物的分子式,其通式为LnH₂Si-Mo₁₁V₁O₄₀·XH₂O,Ln₄(H₂SiMo₁₀V₂O₄₀)₃·XH₂O（Ln=La、Ce、Pr、Nd、Sm、Eu、Gd、Dy）。更多还原

【Abstract】 The salts of the molybdovanadosilicic heteropolyacids with lanthanide have been prepared by double decomposition method. Their vibration spectra, electron spectra, X-ray powder diffraction and thermal decomposability were investigated, the molecular formulas were defined by chemical analysis and thermogravimetry, their general formulas are LnH₂ SiMo₁₁V₁O₄₀. XH₂O and Ln₄(H₂SiMo₁₁V₂O₄₀)₃.XH₂O （Ln=La, Ce, Pr, Nd, Sm, Eu, Gd, Dy）. The methods of Synthesis and analysis of the compounds have been also discussed.更多还原