chloro complex [(3-tBuCp)-CMe2-Flu]YCl(THF) (7), using a salt elimination between the dilithium salt of the ligand and YCl3(THF)3.5. Reaction of 7 with LiCH(SiMe3)2 gives the alkyl complex [(3-tBuCp)-CMe2-Flu)]Y(CH(SiMe3)2) (8), which contains no THF molecule in its coordination sphere in contrast to unsubstituted analogues 3 and 4. Preliminary studies of the catalytic activity of these new complexes
阴离子配合物[(Cp-
CME 2 -Flu)YCl 2 ] - [Li(ether)4 ] +(1)(Cp = C 5 H 4,Flu = 9-C 13 H 8)的反应由YCl 3(THF)3.5和1摩尔当量的二
锂盐[Cp-
CME 2 -Flu] Li 2,与等摩尔量的RLi生成烷基单THF络合物[(Cp-
CME 2 -Flu)] Y(R )(THF)(R = CH(森达3)2,3 ; CH 2森达3,4)高产。的固态结构3通过X射线衍射确定,示出对称地配位到
钇中的中介
芴部分η 3 - η 5模式。的氢解3和4用H 2或PhSiH 3给出了
氢化物[(μ:η 5,η 5 -Cp-
CME 2 -Flu)] Y(μ -H)(THF)} 2(5)。固态结构5通过X-射线衍射确定了C 1 -C 2 -C 9 -Ce -
CME 2 -Flu和
氢化物配体的二聚体结构(YH = 1.99(4)-2.01