Rare earth alkyl and hydride complexes bearing silylene-linked cyclopentadienyl-phosphido ligands. Synthesis, structures, and catalysis in olefin hydrosilylation and ethylene polymerization
作者:Olivier Tardif、Masayoshi Nishiura、Zhaomin Hou
DOI:10.1016/j.tet.2003.07.015
日期:2003.12
cyclopentadienyl-phosphido rare earth alkyl and hydride complexes of type Me2Si(C5Me4)(PR′)LnR (Ln=Y, Yb, Lu; R′=Ph, Cy, C6H2tBu3-2,4,6; R=CH2SiMe3, H) have been synthesized and structurally characterized, and their activity in ethylene polymerization and olefin hydrosilylation has been studied. These complexes represent the first examples of rare earth alkyl and hydride complexes bearing cyclopentadienyl-phosphido
Me 2 Si(C 5 Me 4)(PR')LnR(Ln = Y,Yb,Lu; R'= Ph,Cy,C 6 H合成了2 t Bu 3 -2,4,6; R = CH 2 SiMe 3,H)并对其结构进行了表征,并研究了它们在乙烯聚合和烯烃氢化硅烷化中的活性。这些配合物代表了带有环戊二烯基-磷基配体的稀土烷基和氢化物配合物的第一个例子,它们在结构和化学上都与类似的环戊二烯基-酰胺基和茂金属配合物形成鲜明对比。