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采用水热法合成并通过溶液挥发法生长出一种新的多酸基电荷转移配合物(C2H8N)6(As2Mo6O26).4H2O.X-射线单晶衍射结果表明:配合物属于三斜晶系,P-1空间群,晶胞参数为:a=8.636 1(7),“=70.441(2)°,b=11.234 6(9),#=70.943(3)°,c=12.290 4(9),γ=79.253(3)°,V=1 058.07(14)3,Z=1,R(F)=0.057 7,ωR(F2)=0.135 0,S=1.006.该配合物基于杂多阴离子[As2Mo6O26]6-和质子化的二甲胺阳离子,通过氢键作用形成二维平面结构.通过红外、差热热重、元素分析等对其结构进行了表征,通过气相色谱法跟踪测试了其催化氧化消除甲醇的研究.结果表明,该配合物具有良好的催化消除甲醇的能力.
A novel polyoxometalate charge-transfer complex (C2H8N) 6 (As2Mo6O26) was synthesized by hydrothermal method and solution evaporation method. The results of 4H2O.X-ray single crystal diffraction showed that the complex belongs to triclinic system, P-1 space group with unit cell parameters of a = 8.636 1 (7) , ”= 70.441 (2) °, b = 11.234 6 (9) , # = 70.943 (3) °, c = 12.290 4 (9) , γ = 79.253 (3) °, V = 1 058.07 (14) 3, Z = 1, R (F) = 0.057 7, ωR (F2) = 0.135 0, S = Based on the heteropolyanion [As2Mo6O26] 6- and the protonated dimethylamine cation, two-dimensional planar structure was formed by hydrogen bonding.The structure was characterized by IR, DTA and elemental analysis, The catalytic oxidation of methanol was tracked and tested.The results showed that the complex has a good catalytic ability to eliminate methanol.