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采用水热合成法制备了三维超分子化合物[Cu~Ⅰ(en)_2][PW_2~ⅤW_(10)~ⅥO_(39)](Hen)_2·2H_2O(en为乙二胺).通过元素分析、红外光谱和X射线单晶衍射确定了化合物的组成和晶体结构.结果表明:晶体属于三斜晶系,P-1空间群;晶胞参数a=1.09091(9)nm,b=1.16257(10)nm,c=1.94343(15)nm,α=81.38°,β=84.47°,γ=65.29°,V=2.2122(3)nm3,Z=2,R1=0.0804,wR2=0.2003.标题化合物由1个α-Keggin型杂多阴离子单元、1个[Cu(en)2]+配阳离子、2个质子化的en分子和2个结晶水构成.多阴离子单元通过共用端氧的方式形成无限延展的一维链,一维链通过复杂的氢键网络堆积成具有哑铃型孔道的三维有机-无机超分子化合物.
Three-dimensional supramolecular compounds [Cu ~ I (en) _2] [PW_2 ~ VW_ (10) ~ V_O_ (39)] (Hen) _2 · 2H_2O were prepared by hydrothermal synthesis method and were characterized by elemental analysis , The composition and the crystal structure of the compound were confirmed by IR and X-ray single crystal diffraction. The results show that the crystal belongs to the triclinic system with P-1 space group; the unit cell parameters a = 1.09091 (9) nm, b = 1.16257 ) = 1.94343 (15) nm, α = 81.38 °, β = 84.47 °, γ = 65.29 °, V = 2.2122 (3) nm3, Z = 2, R1 = 0.0804, wR2 = 0.2003 The title compound is prepared from 1 One α-Keggin-type heteropolyanion unit, one [Cu (en) 2] + cation, two protonated en molecules and two crystal waters.The polyanion units form an infinitely extended One-dimensional chain, one-dimensional chain through a complex network of hydrogen bonds accumulation of three-dimensional organic-inorganic supramolecular compounds with dumbbell-shaped channels.