中文摘要：

通过选用不同的溶剂,在水热条件下合成了2个经典的Dawson型有机-无机杂化超分子化合物（H2BBI）3P2W18O62.H2O（1）和H2（H2BBI）2P2W18O62.2H2O（2,BBI为1,4-二咪唑基丁烷）.通过单晶X射线衍射、元素分析和红外光谱对化合物1和2的结构进行了表征.X射线单晶衍射分析结果表明,化合物1通过多金属氧酸盐的端氧和桥氧原子以及游离的水分子构筑成新颖的三维超分子结构.改变合成体系所用的溶剂后得到的化合物2晶体属于手性的P1空间群.对化合物1和2的光催化性质进行了研究.

英文摘要：

Two classic polyoxometalate-based compounds,（H2BBI）3 · [P2W18O62]·H2O（1）,H2（H2BBI）2 · [P2W18O62]·2H2O（2）,were synthesized under different solvents.The structures of the two compounds were characterized by elemental analysis,single crystal X-ray diffraction and FTIR spectra.Compound 1 was constructed into a novel 3D supermolecule through bridge and terminal oxygen atoms of Dawson type anions,and free water molecules.Compound 2 crystallized in chiral space group P1 through changing the spatial arrangement of the organic ligand BBI molecules with changing the solvent.The photocatalysis properties of the two compounds were also studied.