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用硅钼酸做原料,在水热条件下合成了一种新型的三维超分子化合物[H2bpy]2[SiMo8ⅥMo4ⅤV2ⅣO42].3H2O.该化合物属于单斜晶系:C2/c空间群;化学式为C20H26Mo12N4O45SiV2,相对分子质量为2 323.62;晶胞参数a=1.427 9(7)nm,b=1.901 2(4)nm,c=2.091 4(9)nm,β=97.73(6)°,V=5.626(5)nm3,Z=4.在该化合物中,水的二聚体通过氢键作用将二帽Keggin多阴离子连接起来,形成三维超分子框架.同时,也研究了将该化合物修饰到电极的电化学行为,表明电极过程是由表面控制的.
A novel three-dimensional supramolecular compound [H2bpy] 2 [SiMo8ⅥMo4VV2IVO42] .3H2O was synthesized by hydrothermal method using silicomolybdic acid as starting material. The compound belongs to the monoclinic space group C2 / c; the chemical formula is C20H26Mo12N4O45SiV2, The relative molecular mass was 2 323.62. The unit cell parameters were a = 1.427 9 (7) nm, b = 1.901 2 (4) nm, c = 2.091 4 ) nm3, Z = 4. In this compound, dimers of water bond two cap Keggin polyanions through hydrogen bonding to form a three-dimensional supramolecular framework. Meanwhile, the electrochemical modification of the compound to the electrode Behavior, indicating that the electrode process is surface-controlled.