【摘 要】
：
The crystal structure of K7Na3[H2W12O42].6H2O was determined by X-ray crystallography and refined to R=0.0864 based on 7024 observed reflections (I>2σ(I)). The
【机 构】
：
Department of Chemistry,Changchun Institute of Applied Chemistry
论文部分内容阅读
The crystal structure of K7Na3[H2W12O42].6H2O was determined by X-ray crystallography and refined to R=0.0864 based on 7024 observed reflections (I>2σ(I)). The crystallographic parameters are a=11.755(2), b=13.0493(3), c=16.289(3); α=77.13(3)°, β=82.92(3)°, γ=89.65(3)°, triclinic, space group, P1, V=2416.7(8)3, Z=2, Mr=3330.98, Dcal=4.578Mg/m3, F(000)=2904, μ(MoKα)=29.170mm-1, T=293K. Two independent polyanions are centered respectively at 1,1,1/2 and 1/2,1/2, 0, approximately perpendicular to each other with dihedral angle between the equatorial planes of the molecules at 96°. K+ and Na+ respectively occupy the clefts of the two discrete polyanions.
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