摘要
研究了K_(10)H_3[Ln(SiMo_(11-n)W_nO_(39)_2]·mH_2O(n=5,7,9;Ln=La^(3+),Ce^(3+),Pr^(3+),Nd^(3+),Sm^(3+),Eu^(3+),Gd^(3+),Dy^(3+),Yb^(3+))的合成方法。测定了K_(10)H_3[Pr(SiMo_6W_5O_(39))_2]·30H_2O的晶体结构,P2_1/n空间群,晶胞参数:a=1.7134(3)nm,b=2.6896(5)nm,c=2.1232(3)nm,β=103.60(3)°,Z=4.讨论了所合成配合物的IR光谱、电子光谱和X射线扮末衍射的特征。热分解性质研究结果表明,不同系列的配合物的分解温度范围:n=5,250～300℃;n=7,300～350℃;n=9,350～400℃。
In this paper a synthetic method of K10H3[Ln(SiMo11-nWnO39)2}·mH2O(n=5,7,9; Ln = La3+, Ce3+, Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Dy3+, Yb3+) was studied. The crystal structure of K10H3[Pr(SiMo6W5O39)2] · 30H2O was determined, the crystal data are as followst monoclinic, space group P1/n, a=1. 7134(3) nm, b=2. 6896(5) nm, c=2.1232(3) nm, β= 103.60(3)°, Z = 4. The characteristics of IR spectra, electronic spectra and X-ray powder diffraction of the new complexes were discussed. The investigation results of pyrolytic property of the complexes proved that the pyrolysis temperature range of them wassn=5, 250-300℃ ; n = 7, 300-350℃; n=9, 350-400℃.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第11期1425-1429,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
杂多酸盐
晶体结构
稀土配合物
Crystal structure, Lanthanide, Heteropoly acid complex
