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通过2,4-二硝基咪唑(2,4-DNI)的钠盐水溶液与硝酸铅的水溶液反应,制备出了2,4-二硝基咪唑铅配合物;采用自然挥发法培养出了适于X光结构测定的单晶,X射线衍射测定结果为,晶体属单斜晶系,空间群为Cc,晶体学参数为:a=6.517(3)×10-1nm,b=17.131(6)×10-1nm,c=14.082(7)×10-1nm,α=90.00(3)°,β=97.80(4)°,γ=90.00(4)°,V=1 557.5(12)×10-3nm3,Z=4,Dc=2.531 g/cm3,μ=11.001 mm-1,F(000)=1 120,最后偏离因子R为0.022 6。根据红外光谱、元素分析和X射线衍射分析结果,确定了2,4-二硝基咪唑铅配合物的化学组成为C6H10O12N8Pb,分子结构式为[Pb(DNI)2(H2O)4]。
The 2,4-dinitroimidazole lead complex was prepared by the reaction of 2,4-dinitroimidazole (2,4-DNI) sodium salt aqueous solution and lead nitrate aqueous solution. The natural volatilization method was used to prepare the suitable The results of X-ray diffractometry showed that the crystal was monoclinic with space group Cc and the crystallographic parameters were: a = 6.517 (3) × 10-1 nm, b = 17.131 (6) × 10-1 nm, c = 14.082 (7) × 10-1 nm, α = 90.00 (3) °, β = 97.80 (4) °, γ = 90.00 (4) °, V = 1 557.5 (12) 3 nm3, Z = 4, Dc = 2.531 g / cm3, μ = 11.001 mm-1, F (000) = 1 120 and the final deviation factor R is 0.0226. The chemical composition of the 2,4-dinitroimidazole lead complex was determined to be C6H10O12N8Pb and the molecular structure was [Pb (DNI) 2 (H2O) 4] based on IR, elemental analysis and X-ray diffraction analysis.