双-(3,5-二叔丁基-2-羟基苄基-3-异丙基咪唑基)五氯化镱的合成与结构

Bis[1-(3,5-di-tert-butyl-2-hydroxybenzyl)-3-isopropylimidazolium] pentachlorido(tetrahydrofuran)ybtterbium(Ⅲ)

阴离子功能化的咪唑盐LCl(L=HO-4,6-di-tBu-C6H2-2-CH2{CH[NCHCHN]iPr})与无水YbCl3反应成功合成阴离子功能化的咪唑基五氯化物镱L3[YbCl5(THF)]2-Cl-,产物通过元素分析、IR、X-ray射线衍射法表征。晶体结构表明配合物属于三斜晶体,空间群P1,晶胞参数a=1.6082(4)nm,b=1.6522(4)nm,c=1.7778(5)nm,α=81.682(16)°,β=81.378(16),γ=68.172(10)°,V=4.315(2)nm3,Z=2,F(000)=1750,D=1.280Mg/m3,μ=1.32mm-1,R1=0.1076,wR2=0.2213。氢键的存在对空间网状结构的形成起着重要的作用。

The lanthanide complexes, [ I.q ]3＋ [ YbCls （THF） ]2- Cl[ L = HO-4,6-di- Bu-C6Hz-2-CHz { CH （ NCHCHW Pr） I was synthesizedby the reaction of anhydrous YbCI3 with anionic functionalized imidazolium L CI- in I to 3 molar ratio in THF at room temperature in high yield. The complex was characterized by IR spectra, elemental analysis and single-crystal X-ray diffraction. The result shows that the crystal belongs to triclinie system, a=1.6082（4）nm,b=1.6522（4）nm,c=1.7778（5）nm,a=81.682（16）°,β=81.378（16）,γ=68.172（10）°,V=4.315（2）nm3,Z=2,F（000）=1750,D=1.280Mg/m3,μ=1.32ram-1,R1=0.1076,wR2=0.2213 Structure analysis shows that hydrogen bonds play a key role for the stable structure in the complex.