利用水热合成方法合成了Dawson结构杂多化合物[4,4′-bipyH]2H4(P2W18O62)·[4,4′-bipy]1.5·4H2O,并经IR、UV光谱和X射线单晶衍射等测试技术进行了表征. 化合物属于三斜晶系,Pī空间群,晶胞参数:a=1.324 8(3) nm,b=1.411 9(3) nm,c=2.683 3(5) nm,α=78.51(3) °,β=83.72(3) °,γ=68.07(3)°,V=4.559 4(16) nm3,Z=2,Dc=3.634 g/cm3,R1=0.055 3,wR2=0.129 0. 结构分析结果表明,标题化合物分子由2个质子化的4,4′-联吡啶分子、1.5个游离的4,4′-联吡啶分子、4个H+离子、1个饱和Dawson结构杂多阴离子[P2W18O62]6-和4个结晶水分子组成.
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