Synthesis, Characterization and Crystal Structure of Neutral Homoleptic Lanthanide Amide Yb(NPh_2)_3(THF)  

作　　者：姚英明 毛礼胜 陆新华 沈琪 孙杰 

机构地区：[1]Department of Chemistry and Chemical Engineering, Suzhou University [2]Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences

出　　处：《Journal of Rare Earths》2002年第6期592-595,共4页稀土学报（英文版）

基　　金：NSFC ( 2 0 0 72 0 2 7),DepartmentofEducationofJiangsuProvinceandtheKeyLaboratoryofOrganicSynthesisofJiangsuProvince

摘　　要：A neutral homoleptic lanthanide amide Yb(NPh 2) 3(THF) 2 was obtained by reaction of anhydrous YbCl 3 with LiNPh 2 in THF. The product was characterized by elemental analysis, infrared spectrum and X-ray crystallographic analysis. The crystal data are monoclinic, P2 1/n space group, a=1.2052(2) nm, b=1.9369(3) nm, c=1.6523(2) nm, β=92.79(1)°, V=3.8524(9) nm 3, Z=4, D c=1.417 g·cm -3, μ=24.67 cm -1 (Mo Kα), F(000)=1668, R=0.036, R w=0.039. The central metal ytterbium is coordinated by three terminal NPh 2 groups and two THF molecules to form a five-coordinate distorted trigonal bipyramid. The mean Yb-N bond length is 0.2219(6) nm.A neutral homoleptic lanthanide amide Yb(NPh 2) 3(THF) 2 was obtained by reaction of anhydrous YbCl 3 with LiNPh 2 in THF. The product was characterized by elemental analysis, infrared spectrum and X-ray crystallographic analysis. The crystal data are monoclinic, P2 1/n space group, a=1.2052(2) nm, b=1.9369(3) nm, c=1.6523(2) nm, β=92.79(1)°, V=3.8524(9) nm 3, Z=4, D c=1.417 g·cm -3, μ=24.67 cm -1 (Mo Kα), F(000)=1668, R=0.036, R w=0.039. The central metal ytterbium is coordinated by three terminal NPh 2 groups and two THF molecules to form a five-coordinate distorted trigonal bipyramid. The mean Yb-N bond length is 0.2219(6) nm.

关 键 词：rare earths lanthanide amide ytterbium crystal structure 

分 类 号：O72[理学—晶体学]