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利用中温水热技术合成了新型超分子化合物[HN(C2H5)3]2H[PWl2O40]·4H2O,并采用元素分析、红外光谱、单晶X-射线衍射对其进行了表征.晶体学参数:三斜晶系,C2/C空间群,a=2.468 9(5)nm,b=1.083 1(5)nm,c=2.248 2(5)nm,α=90.00°,β=121.094(5)°,γ=90.00°,V=5.148(3)nm3,Z=4,R1=0.045 6,wR2=0.147 1.该化合物的基本结构单元是由2个质子化的三乙胺分子、4个水分子、1个质子和1个Keggin型杂多阴离子[PWl2O40]3-组成.不同结构单元之间通过氢键作用形成一维链状结构,链间进一步通过分子间氢键构成三维超分子结构.
A novel supramolecular compound [HN (C2H5) 3] 2H [PWl2O40] · 4H2O was synthesized by means of mesophilic hydrothermal technique and characterized by elemental analysis, IR and single crystal X-ray diffraction. A = 2.468 9 (5) nm, b = 1.083 1 (5) nm, c = 2.248 2 (5) nm, α = 90.00 °, β = 121.094 γ = 90.00 °, V = 5.148 (3) nm3, Z = 4, R1 = 0.045 6, wR2 = 0.147 1. The basic structural unit of the compound is composed of two protonated triethylamine molecules, four water molecules, 1 proton and 1 Keggin-type heteropolyanion [PWl2O40] 3-, one-dimensional chain structure is formed by hydrogen bonding between different structural units, and the three-dimensional supramolecular structure is further formed by intermolecular hydrogen bonds between chains.