新型无机-有机杂化化合物(Hmorph)_4[SiMo_(12)O_(40)]·2H_2O合成与性质研究  

Preparation,characterization and electrochemical investigation of a new inorganice-organic hybrid material (Hmorph)_4[SiMo_(12)O_(40)]·2H_2O

作　　者：杨艳艳[1,2] 王新龙[2] 曲小姝[1] 刘树萍[3] 梁力文[1] 苏畅[1] 

机构地区：[1]吉林化工学院化学与制药工程学院,吉林吉林132073 [2]东北师范大学化学学院,吉林长春130024 [3]哈尔滨商业大学旅游烹饪学院,黑龙江哈尔滨150076

出　　处：《分子科学学报》2015年第4期283-287,共5页Journal of Molecular Science

基　　金：国家自然科学基金资助项目(21301041);吉林省科技厅青年基金资助项目(201201105;201215171)

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.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-.

关 键 词：多酸 无机-有机杂化 晶体结构 

分 类 号：O614[理学—无机化学]