【摘要】 合成了Keggin结构的杂多化合物K2HPMo8W4O40·8H2O，并测定了其单晶结构。晶胞参数为：四方晶系，空间群92871073。该化合物是由和水分子组成。该阴离子属Keggin结构，其中的12个金属原子是Mo，W的统计分布。M-M（M=2／3Mo＋1／3W）的键长为3．54。更多还原

【Abstract】 Heteropoly compound K2HPMo8W4O40. 8H2O has been synthesized. It belongs to Kegginseries and crystallizes in tetragonal system, space group P4n2 (# 118) with the following crystallographic parameters: a = b = 12. 608 (2), c = 17. 928 (5 ) A, V = 2850 (2 ) and Mr =2397. 20, D.= 2. 793 g/cm3, Z = 2, A(MoKa) = 0. 71073 , F(000) = 2172, μ= 10. 134mm-1 and final R= 0.154 and R.=0. 076 for 1528 observed reflections with I≥3σ(I). The titlecompound contains heteropolyanion [(Mo8W4) PO40]3- linked together by K+ ions and watermolecules. The heteropolyanion has the well-known Keggin structure, which the 12 metal atomsin the cage of the anion comprise eight Mo and four W atoms in a random distribution. The MM (M = 2/3Mo+ 1/3W) average distance in the anion is 3. 54 A更多还原