Synthesis, Characterization and Crystal Structure of Neutral Homoleptic Lanthanide Amide Yb(NPh2)3(THF)2

稀土学报(英文版), 2002, 20(6): 592-595.

姚英明 ^1, , 毛礼胜 ^2, , 陆新华 ^3, , 沈琪 ^4, , 孙杰 ^5,

1.Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China

2.Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China

3.Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China

4.Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China

5.Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China

基金项目: 国家自然科学基金(20072027) Department of Education of Jiangsu Province and the Key Laboratory of Organic Synthesis of Jiangsu Province

Synthesis, Characterization and Crystal Structure of Neutral Homoleptic Lanthanide Amide Yb(NPh2)3(THF)2

Keywords： rare earths

A neutral homoleptic lanthanide amide Yb(NPh2)3(THF)2 was obtained by reaction of anhydrous YbCl3 with LiNPh2 in THF. The product was characterized by elemental analysis, infrared spectrum and X-ray crystallographic analysis. The crystal data are monoclinic, P21/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) nm3, Z=4, Dc=1.417 g*cm-3, μ=24.67 cm-1 (Mo Kα), F(000)=1668, R=0.036, Rw=0.039. The central metal ytterbium is coordinated by three terminal NPh2 groups and two THF molecules to form a five-coordinate distorted trigonal bipyramid. The mean Yb-N bond length is 0.2219(6) nm.

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Synthesis, Characterization and Crystal Structure of Neutral Homoleptic Lanthanide Amide Yb(NPh2)3(THF)2

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