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Dawson结构杂多化合物[4,4-′bipyH]_2H_4(P_2W_(18)O_(62))·[4,4-′bipy]_(1.5)·4H_2O的水热合成及晶体结构 被引量:4

Hydrothermal Synthesis and Crystal Structure of Heteropolycompound [4,4′-bipyH]_(2)H_(4)(P_(2)W_(18)O_(62))·[4,4′-bipy]_(1.5)·4H_(2)O of Dawson-type
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摘要 利用水热合成方法合成了Dawson结构杂多化合物[4,4-′b ipyH]2H4(P2W18O62).[4,4-′b ipy]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。 A Dawson-type heteropolycompound [ 4,4'-bipyH ] 2 H4 ( P2 W18 O62 ) [ 4,4'-bipy ] 3.5· 4H2 O has been synthesized hydrothermally and characterized by means of IR, UV and X-ray single-crystal diffraction methods. X-ray crystal structural analysis indicates that the title compound crystals are triclinic with a space groupPi, and the lattice parameters are as follows:a = 1.324 8(3) nm, b = 1.411 9(3) nm, c = 2.683 3(5) nm,a =78. 51(3)°,β =83.72(3) °,γ =68.07(3)°, V=4.559 4(16) nm^3,Z =2,Dc = 3. 634 g/cm^3, R1 = 0. 055 3, ωR2 = 0. 129 0. The title compound consists of 2 protonated 4, 4'-bipy molecules, 0. 5 discrete 4,4'-bipy molecule, 4 H^+ cations, 1 heteropolyanion of [ P2 W18 O62 ] 6- and 4 water molecules.
出处 《应用化学》 CAS CSCD 北大核心 2005年第12期1324-1328,共5页 Chinese Journal of Applied Chemistry
基金 河南省自然科学基金(104110517007) 河南省教育厅基金(20011500024)资助项目
关键词 水热合成 联吡啶 DAWSON结构 杂多化合物 hydrothermal synthesis, Dawson structure, bipy, heteropolycompound
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