一种以Keggin阴离子为模板金属-氧化物为主体化合物的合成与性质研究  

Synthesis and Properties of a Metal-Oxide Compound with Keggin Anion as Template

作　　者：代立梅 盖红辉 陈利强 刘立红 Dai Limei;Gai Honghui;Chen Liqiang;Liu Lihong(Department of Chemistry,Faculty of Science,Heihe University,Heihe 164300,China)

机构地区：[1]黑河学院理学院,黑龙江黑河164300

出　　处：《黑河学院学报》2021年第10期183-185,共3页Journal of Heihe University

基　　金：黑河学院科学技术研究项目“多酸光催化剂的制备及产氢活性研究”(KJZ202001)。

摘　　要：水热条件下,合成了一种新的化合物[Mo^(V)_(4)O8(bpy)_(6)][PMo_(11)VO_(40)]·4H_(2)O,并用元素分析、X-射线单晶衍射、红外光谱、热重分析对其结构进行了表征。单晶X射线分析表明化合物属于三斜晶系,P-1空间群,a=11.5691(12)Å,b=14.6929(16)Å,c=14.7049(16)Å,α=104.5000(10)º,β=110.3860(10)º,γ=91.0490(10)º,V=2253.0(4)Å3,Z=1,F(000)=1584,R1=0.0835,wR2=0.2415.化合物的晶体结构单元由一个金属—氧化物的阳离子主体[Mo^(V)_(4)O8(bpy)_(6)]^(4+),一个Keggin阴离子[PMo_(11)VO_(40)]^(4-)和四个水分子组成,该化合物具有较好的电催化活性。A new compound[MoV4O8(bpy)6][PMo11VO40]·4H2O has been synthesized under hydrothermal conditions and characterized by element analysis,single-crystal X-ray diff raction,IR,TG analysis.Single-crystal X-ray structural analysis reveals that the compound crystallizes in the triclinic system,space group P-1,a=11.5691(12)Å,b=14.6929(16)Å,c=14.7049(16)Å,α=104.5000(10)º,β=110.3860(10)º,γ=91.0490(10)º,V=2253.0(4)Å3,Z=1,F(000)=1584,R1=0.0835,wR2=0.2415.The basic structural unit of the compound is composed of a metal-oxide-based hybrid host[MoV4O8(bpy)6]4+and aα-Keggin anion[PMo11VO40]4-and four water molecules.The compound proves to be of good electrochemical properties.

关 键 词：KEGGIN 阴离子 金属—氧化物 水热合成 

分 类 号：O611[理学—无机化学]