Dawson结构［（C6H4N4）2·P2W18O62·11（H2O）］的合成、表征、晶体结构

摘要

由联咪唑与K6 P2 W18 O62· nH2 O合成了基于Dawson型杂多化合物[（ C6 H4 N4）2· P2W18O62·11（H2O）]，并通过元素分析、X-射线单晶衍射仪、红外光谱等确定了该化合物的晶体结构．单晶结构解析结果表明晶体属单斜晶系，空间群为C2/C，晶胞参数：a＝2．26349（13）， b＝1．43798（8）， c＝2．19657（12），β＝97．4400（10），Z ＝4，V＝7．0893（7） nm3，R1＝0．0545，ωR2＝0．1540．化合物分子由一个P2 W18 O62阴离子、两个联咪唑和11个水分子组成．%A Dawson structure compound [ ( C6 H4 N4 ) 2 · P2 W18 O62 · 11( H2 O) ] was synthesized by the the reaction of 2,2′-biimidazole and polyacids K 6 P2 W18 O62 · 11 ( H2 O) · nH2 O.The structure of the compound was characterized by the element analysis , single crystal X-ray diffractometer and IR spectrum .The single crys-tal x-ray structure analysis of the title compound revealed that it belongs to C2/C space group , a=2.26349 (13), b=1.43798(8), c=2.19657(12),β=97.4400 (10), Z =4, V=7.0893(7) nm3 , R1 =0.0545,ωR2 =0.1540.