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以有机胺分子丙二胺(L1)为配体,利用水热合成方法制备了一个新的基于Keggin型多金属氧酸盐阴离子[Si Mo12O40]4-的有机-无机杂化超分子化合物[(L1)(H4Si Mo12O40)]·8H2O(1),并通过红外光谱和X-射线单晶衍射方法确定了化合物的晶体结构.该配合物分子式为C3H30Mo12N2O48Si,三斜晶系,P 1空间群,a=12.8900(6),b=13.3870(6),c=13.5260(6),α=87.0260(10)°,β=88.6050(10)°,γ=88.2740(10)°,Z=2,V=2329.22(18)3,Mr=2041.64,Dc=2.888 g/cm3,F(000)=1896,μ=3.259 mm-1,S=1.077,R=0.0504,wR=0.1513.晶体结构分析表明,该化合物是由离散的多金属氧酸盐簇H4Si Mo12O40和丙二胺分子L1组成,两种组分间通过氢键作用形成一维超分子带状链结构.利用循环伏安法研究了目标化合物修饰碳糊电极的电化学行为及其对NO2-还原的电催化性能.CCDC:1040790.
A novel organo-inorganic hybrid superamolecular compound based on Keggin-type polyoxometalate anion [Si Mo12O40] 4- [( L1) (H4Si Mo12O40)] · 8H2O (1) was prepared and the crystal structure of the compound was confirmed by IR and X-ray single crystal diffraction. The complex has the molecular formula of C3H30Mo12N2O48Si, triclinic, P 1 space group, a = 12.8900 (6) , b = 13.3870 6, c = 13.5260 6, α = 87.0260 (10) °, β = 88.6050 (10) °, γ = 88.2740 , V = 2329.22 (18) 3, Mr = 2041.64, Dc = 2.888 g / cm3, F (000) = 1896, μ = 3.259 mm-1, S = 1.077, R = 0.0504, wR = 0.1513. The results show that the compound is composed of discrete polyoxometalate cluster H4Si Mo12O40 and propylenediamine L1, and the two components form a one-dimensional supramolecular chain structure through hydrogen bonding. By cyclic voltammetry, Electrochemical Behavior of Target Compounds Modified Carbon Paste Electrode and Its Electrocatalytic Activity for NO2-Reduction. CCDC: 1040790.