电荷转移配合物(C2H8N)3(PW12O40)·2H2O的合成及催化性质

采用水热法，在DMF-水溶剂中合成出一种新型的电荷转移配合物(C₂H₈N)₃(PW₁₂O₄₀)·2H₂O.利用红外光谱和差热热重对其进行结构表征和热稳定分析，并通过X-射线单晶衍射对其结构进行确证.结果表明，配合物属于三方晶系，R3m空间群，晶胞参数为a=1.626 82(12) nm，b=1.626 82(12) nm，c=2.481 9(4) nm，α=90°，β=90°，γ=120°，V=5.688 4(11) nm³，Z=6，R1=0.057 7，wR₂=0.144 4，S=1.006.配合物对甲醇具有较好的催化活性，175 ℃时，当甲醇初始浓度为5.37 g·m^-3，流速为4.51 mL·min^-1，0.20 g催化剂对甲醇的消除率达到59%.

Synthesis and Catalytic Properties of the Charge Transfer Compound (C2H8N)3(PW12O40)·2H2O

A new charge-transfer compound(C₂H8N)₃(PW₁₂O₄₀)·2H₂O synthesised by hydrothermal technology using DMF-water as solvent which was characterized by IR spectroscopy,TG-DTA and single-crystal X-ray diffraction.The results show that the compound belongs to the trigonal system,R3m sapce group,and the cell parameters.Crystal data:trigonal,space group:R3m,a=1.626 82(12) nm，b=1.626 82(12) nm，c=2.481 9(4) nm，α=90°，β=90°，γ=120°，V=5.688 4(11) nm³，Z=6，R1=0.057 7，wR2=0.144 4，S=1.006.The compound has good catalytic activity for the oxidative elimination of methanol.When the initial concentration of methanol is 5.37 g·m^-3,and the flow rate is 4.51 mL·min^-1,59% of methanol is eliminated at 175 ℃.