在水热条件下合成了ENi(en)2]6E(VO)12O6B18O19(OH)3].6H2O多钒硼酸盐,X射线衍射分析表明,该晶体属三方晶系,R-3空间群.测试了晶体的IR光谱和TG曲线,用循环伏安法详细研究了合成化合物的氧化还原性质及电子转移机理,结果表明该化合物具有两对氧化还原峰,其电子转移数分别为单电子和三电子.
A polyoxovanadium borate ENi(en)2]6E(VO)12O6B18O19(OH)3]·6H2O has been synthesized and characterized by X-ray crystal structure analysis. The result shows that Ni6V12B18 are in a rhombohedral system with space group R-3. The redox property and the mechanism of electrode reaction are studied by cyclicvoltammetry method, the result has shown electrochemical behavior about Ⅴ(Ⅳ) and Ⅴ(Ⅴ) atoms,which gives one one-electron and one three-electron reduction waves