Synthetic and structural studies of the cyclopentadienyl-free yttrium alkyl alkoxide and aryloxide complexes [(Me(3)Si)(2)CH]Y-2(mu-OCMe(3))(2)Li(THF) and [Me(3)SiCH(2)]Y-2(OC(6)H(3)(t)Bu(2)-2,6)(THF)(2)

被引：32
作者：
Evans, WJ
BroomhallDillard, RNR
Ziller, JW
机构：
[1] Department of Chemistry, University of California, Irvine
来源：
ORGANOMETALLICS | 1996年 / 15卷 / 05期
关键词：
D O I：
10.1021/om9508400
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
YCl3 reacts with 2 equiv of LiCH(SiMe(3))(2) and 2 equiv of LiOCMe(3) in THF to form the dialkyl dialkoxide complex [(Me(3)Si)(2)CH]Y-2(mu-OCMe(3))(2)Li(THF), 1. The yttrium in 1 is surrounded by a distorted tetrahedral arrangement of two terminal alkyl groups and two bridging alkoxide groups, and the coordination around lithium is trigonal planar. The reaction of YCl3 with 2 equiv of LiCH(2)SiMe(3) and 1 equiv of LiOC(6)H(3)(t)Bu(2)-2,6 in THF forms the neutral dialkyl aryloxide complex (Me(3)SiCH(2))(2)Y(OC(6)H(3)(t)Bu2-2,6)(THF)(2), 2. The coordination geometry around yttrium in 2 is a distorted trigonal bipyramid with the THF groups in the apical positions.
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页码：1351 / 1355
页数：5
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