在常规条件下合成了2种具有一维链状结构的多金属钨酸盐K5H11[WO2(PW9O34)2]·33H2O(1)和K6Na2H2[Ni4(H2O)2(PW9O34)2]·23H2O(2).采用X射线单晶结构分析、元素分析和红外光谱对其进行了表征.结果表明:化合物1属于正交晶系,Fddd空间群;晶胞参数a=2.9063nm,b=3.1790nm,c=3.9148nm,α=90.00°,β=90.00°γ=90.00°,V:36.1940nm^3,Z=2,R1=0.0706,ωR2=0.1621.化合物2属于单斜晶系,P2(1)/n空间群;晶胞参数a=1.1916nm,b=1.6547nm,C=2.1211nm,α=90.00°,β=100.66°,γ=90.00°,V=4.1098nm^3,Z=16,R1=0.0638,ωR2=0.1432.
Abstract: Two one-dimensional(1D) chain-like heteropolyoxotungstates K5H11 [ WO2 (PW9O34) 2 ]· 33H2O and K6Na2H2 [ Ni4( H2O)2( PW9O34 )2 ]· 23H2O ( 2 ) have been ob tai ned in aqueous solution and charac - terized by IR, element analysis and single-crystal X-ray analysis. Compound 1 crystallizes in the orthorhombic system and space group Fddd with a =0.290 6 nm,b =3. 179 0 nm,c =3.914 8 nm,α = 90°,β= 90°, γ=90°, V=36.194 0 nm^3,Z=2,R1 =0.070 6,ωR2 =0. 162 1. Compound 2 is crystallizes in the monoclinic system and space group P2(1)/n with a = 1. 191 6 nm, b = 1. 654 7 nm, c = 2. 121 1 nm, α = 90.00°,β= 100.66(3)°, γ = 90.00°, V=4. 109 8 nm^3,Z= 16,R1 =0.063 8,ωR2 =0. 143 2.