Preparation, molecular structure and catalytic behavior of (ArO)2Yb(NPh2)2K(THF)4 (Ar=C6H2-t-Bu3-2,4,6)

被引：0

作者：

Yuan, FG ^{[1
]}

Wang, HY

Zhang, Y

机构：

[1] Univ Sci & Technol Suzhou, Dept Chem, Suzhou 215009, Jiangsu, Peoples R China

[2] Suzhou Univ, Dept Chem, Suzhou 215006, Jiangsu, Peoples R China

来源：

CHINESE JOURNAL OF CHEMISTRY | 2005年 / 23卷 / 04期

关键词：

aryloxide; ytterbium; amido; polymerization;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reaction of anhydrous YbCl3 with 2 equiv. of sodium 2,4,6-tri-tert-butylphenoxide (ArONa, Ar=C6H2-t-Bu-3-2,4,6) and 2 equiv. of potassium diphenyl amide in THF afforded the first bis(aryloxo) amido-lanthanide complex of (ArO)(2)Yb(NPh2)(2)K(THF)(4) (1). In 1, the ytterbium and potassium were bridged via diphenyl amido ligands. The ytterbium metal center was coordinated to two oxygen atoms of aryloxide ligands and two nitrogen atoms of diphenyl amido ligands in a conventional distorted tetrahedral fashion, while the potassium interacted in rye-fashion with two phenyl rings of the diphenyl amido ligands besides four THF molecules. 1 displayed moderate catalytic activities for the polymerization of methyl methacrylate and acrylonitrile.

引用

页码：409 / 412

页数：4

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