Synthetic and Structural Studies of the Cyclopentadienyl-Free Yttrium Alkyl Alkoxide and Aryloxide Complexes [(Me3Si)2CH]2Y(μ-OCMe3)2Li(THF) and [Me3SiCH2]2Y(OC6H3tBu2-2,6)(THF)2
Synthetic and Structural Studies of the Cyclopentadienyl-Free Yttrium Alkyl Alkoxide and Aryloxide Complexes [(Me3Si)2CH]2Y(μ-OCMe3)2Li(THF) and [Me3SiCH2]2Y(OC6H3tBu2-2,6)(THF)2
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DOI：
10.1021/om9508400
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发表时间：
1996-03
期刊：
影响因子：
2.8
通讯作者：
W. Evans;Randy N. R. Broomhall-Dillard;J. Ziller
中科院分区：
文献类型：
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作者：
W. Evans;Randy N. R. Broomhall-Dillard;J. Ziller
YCl3与2当量LiH(SiMe3)2和2当量LiOCMe3在四氢呋喃中反应生成二烷基二元氧化物配合物[(Me3Si)2CH]2Y(μ-OCMe3)2Li(四氢呋喃)，1.1中的Y被两个末端烷基和两个桥联醇盐的扭曲四面体排列所包围，锂的配位是三角平面的。YCl3与2当量的LiCH2SiMe3和1当量的LiOC6H3tBu2-2，6在四氢呋喃中反应生成中性的二烷基芳氧基配合物(Me3SiCH2)2Y(OC6H3tBu2-2，6)(THF)2，2。
YCl3 reacts with 2 equiv of LiCH(SiMe3)2 and 2 equiv of LiOCMe3 in THF to form the dialkyl dialkoxide complex [(Me3Si)2CH]2Y(μ-OCMe3)2Li(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 LiCH2SiMe3 and 1 equiv of LiOC6H3tBu2-2,6 in THF forms the neutral dialkyl aryloxide complex (Me3SiCH2)2Y(OC6H3tBu2-2,6)(THF)2, 2. The coordination geometry around yttrium in 2 is a distorted trigonal bipyramid with the THF groups in the apical positions.