摘要
利用水热方法合成了一种基于双Dawson多阴离子和质子化的4,4′-联吡啶阳离子构筑的化合物[4,4′-bpyH2]5H2[α-P2W18O62]2·4H2O,并经IR光谱、元素分析、热重分析和X射线单晶衍射等测试技术进行了表征.标题化合物属于三斜晶系,P墿空间群,晶胞参数:a=1.35373(5),b=2.24256(13),c=2.73282(11)nm,α=79.890(13),β=77.568(8),γ=80.349(11)°,V=7.9029(6)nm3,Z=2,Dc=4.031g/cm3,GOOF=1.049,R1=0.0674,wR2=0.1434.结构分析结果表明,标题化合物分子由5个质子化的4,4′-联吡啶阳离子、2个H+离子、2个饱和Dawson结构多阴离子[P2W18O62]6-和4个结晶水分子组成.
A compound [ 4, 4＇-bpyH2] s H2[ α-P2W18O62]2·4H2O constructed from double Dawson polyanions and protonated 4, 4＇-bipyridine cations was synthesized by the hydrothermal method and characterized by IR spectra, elemental analysis, thermogravimetric analysis and X-ray single-crystal diffraction. The title compound crystallizes in triclinic space group Pi with a = 1. 353 73 （5）, b = 2.24256（13）, c=2.73282（11） nm, α=79.890（13）, β=77.568（8）, γ=80.349（11）°, V= 7.9029（6） nm^3, Z=2, Dc =4.031 g/cm^3, GOOF=1.049, R1 =0.0674, wR2 =0.143 4. Structural analysis indicates that the molecule of the title compound consists of 5 diprotonated 4, 4＇-bipyridine cations, 2 protons, 2 saturated Dawson polyanions [ P2W18O62]^6- and 4 crystal water molecules.
出处
《化学研究》
CAS
2008年第4期14-17,共4页
Chemical Research
