中文摘要：

合成了1种无机-有机杂化钼酸盐化合物（Hmorph）4[SiMo12O40]·2H2O（Hmorph=morpholine,吗啉）.用元素分析、X射线单晶衍射、红外光谱和热重对晶体的结构进行了表征.该晶体属于三斜晶系,P-1空间群,晶胞参数a=1.214 71（13）nm,b=1.399 0（3）nm,c=1.735 1（2）nm,α=79.892（13）°,β=82.719（9）°,γ=71.812（14）°,V=2.749 7（7）nm3,Z=2.在该化合物晶体结构中包含质子化的吗啉分子、带负电荷的Keggin结构多阴离子簇以及水分子,在分子中通过静电引力及氢键作用交替排列.紫外光谱和电化学实验证明,标题化合物（Hmorph）4[SiMo12O40]·2H2O在水溶液中对ClO3-具有良好的电催化性质.

英文摘要：

A new heteropolymolybdate（Hmorph）4[SiMo12O40]·2H2O（Hmorph = morpholine）,has been synthesized in aqueous solution and characterized by elemental analysis,IR spectroscopy,thermogravimetric analysis（TGA）and single-crystal X-ray diffraction.The crystals are triclinic,P-1,a=1.214 71（13）nm,b=1.399 0（3）nm,c=1.735 1（2）nm,α=79.892（13）°,β=82.719（9）°,γ=71.812（14）°,V=2.749 7（7）nm3,Z=2.X-ray diffraction indicated that protonated morpholine cation and Keggin-type [SiMo12O40]4-anion were linked together through electrostatic interactions and intermolecular forces（hydrogen bonding）.The UV-Vis spectrum and electrochemical properties of title compound in aqueous solution are studied at room temperature.It was found that title compound presents good electrocatalytic activities for the reduction of ClO3-.