锰-乙二胺修饰的夹心型钨锑酸盐的合成及表征

Synthesis and characterization of sandwich type antimoniotungstate modified by Mn-ethylenediamine

水热条件下合成了一种新的锰-乙二胺[Mn(en)]修饰的夹心型锑钨酸盐配位化合物(enH_2)_3H_2{[Mn(en)(H_2O)]_2(WO_2)_2(β-B-SbW_9O_(33))_2}·3H_2O.通过X-射线单晶衍射方法确定了其晶体结构,结构分析表明该化合物为单斜晶系,P2_1/c空间群,晶胞参数a=1.322 68(18)nm,b=1.834 5(2)nm,c=2.217 55(19)nm,α=90°,β=126.617(5)°,γ=90°,V=4.318.8(8)nm^3,Z=2.通过元素分析,红外光谱及紫外光谱等对其结构进行了表征.电化学循环伏安测试表明该化合物修饰的碳糊电极对H_2O_2具有显著的电催化还原活性.

A new Mn-ethylenediamine [Mn（en）]modified sandwich antimoniotungstate complex（enH2）3 H2{[Mn（en）（H2O）]2（WO2）2（β-B-SbW9O（33））2}·3 H2O was synthesized under hydrothermal condition,and X-ray single crystal diffraction method was used to determine its crystal structure.The structural analysis indicated that the title compound was monoclinic and P21/cspace group with the unit cell parameter of a=1.322 68（18）nm,b=1.834 5（2）nm,c=2.217 55（19）nm,α=90°,β=126.617（5）°,γ=90°,V=4.318.8（8）nm3,Z=2.The structure was characterized by element analysis,IR and UV-Vis spectroscopy.Electrochemical cycle voltammetry indicated that the heading compound modified carbon paste electrode showed electrocatalytic activity for H2O2.