Na_2H_4[Fe_4Cl_2(H_2O)_8(β-SeW_9O_(33))_2]·22H_2O的合成及表征

Synthesis and Characterization of Na_2H_4[Fe_4Cl_2( H_2O)_8(β-SeW_9O_(33))_2]·22H_2O

用水热合成法成功地合成了以硒为杂原子、以过渡金属铁为取代原子的新型三元杂多金属氧酸盐.给出了反应的pH值和最佳物料比.通过元素分析、红外光谱、紫外光谱、差热分析等方法对产物进行了表征,用X射线单晶衍射法测定了Na2H4[Fe4Cl2(H2O)8(β-SeW9O33)2]·22H2O的晶体结构.该晶体属于单斜晶系,C2/m空间群,a=20.307(8,b=15.408(6),c=16.379(7),β=95.061(7)°,V=5105(4)3,Z=2.最终偏差因子R=0.072.

A novel transition metal iron which substituted polytungstoselenites was synthesized by hydrothermal reaction. Na2H4[Fe4Cl2（H2O）8（β-SeW9O33）2]·22H2O was characterized by IR, UV, TG and single crystal X - ray diffraction. It crystallizes in monoclinic system space group C2/m with a = 20. 307 （ 8 ）A^°,b = 15.408（6）A^°,c =16.379（7）A^°,β =95.061（7）°,V =5105（4）A^°3,Z =2,R1 =0.072.