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利用CuCl2·2H2O,1,2,4-三氮唑(TA),L-丝氨酸与Na3[α-PW12O40]·6H2O在乙醇的水溶液中合成了一种有机-无机复合Keggin结构磷钨酸盐[HTA]3[α-PW12O40]·6H2O;利用红外光谱和X射线单晶衍射表征了合成产物的结构,利用元素分析测定了其组成.结果表明,标题化合物属于菱方晶系R-3空间群,晶胞参数为:a=1.793 73(12)nm,b=1.793 73(12)nm,c=2.440 7(3)nm,α=β=90°,γ=120°,Z=6,V=6.800 7(11)nm3,Dc=4.682g·cm-3,GOOF=1.079,R1=0.051 6,wR2=0.137 4.就分子结构而言,标题化合物分子由一个饱和Keggin结构多阴离子[α-PW12O40]3-,三个游离的质子化[HTA]+阳离子和六个结晶水分子组成.
An organo-inorganic composite Keggin structure phosphotungstate was synthesized by aqueous solution of CuCl2 · 2H2O, 1,2,4-triazole (TA), L-serine and Na3 [α-PW12O40] HTA] 3 [α-PW12O40] · 6H2O.The structure of the synthesized product was characterized by IR and X-ray single crystal diffraction.The composition of the product was determined by elemental analysis.The results showed that the title compound belongs to R-3 space group , The unit cell parameters are: a = 1.793 73 (12) nm, b = 1.793 73 (12) nm, c = 2.440 7 (3) nm, α = β = 90 °, γ = 120 °, Z = 6, V = 6.800 7 (11) nm3, Dc = 4.682 g · cm -3, GOOF = 1.079, R1 = 0.051 6, wR2 = 0.137 4. In terms of the molecular structure, the title compound consists of a saturated Keggin structure polyanion [α- PW12O40] 3-, three free protonated [HTA] + cations and six crystal water molecules.