【摘要】 用助熔剂缓冷法从 KCl—KF 熔体中生长出 K₃Sm（PO₄）₂和K₃Gd（PO₄）₂晶体。化学组成分析和 X 射线衍射分析证明,所得到的晶体是 K₃Sm（PO₄）₂和 K₃Gd（PO₄）₂。计算了它们的晶胞参数。随着原子序数的增加和 Ln³⁺离子半径的减小,K₃Ln（PO₄）₂晶胞体积也减小。测定了晶体的红外光谱、紫外、可见吸收光谱和荧光光谱。更多还原

【Abstract】 Crystals of K₃Sm（PO₄）₂ and KaGd（PO₄）₂ have been grown fromKF—KCl melts.Their constitutions have been verified by chemical analysisand X-ray diffraction analysis,and their lattice parameters have beencalculated.It is shown that for Ln³⁺inos with larger atomic number andsmaller ionic radius,the cell volume of K₃Ln（PO₄）₂ crystals becomes smaller.Their infrared,absorption and fluorescence spectra have been determined.更多还原