Alternating Ethylene-Norbornene Copolymerization Catalyzed by Cationic Half-Sandwich Scandium Complexes
作者:Xiaofang Li、Jens Baldamus、Zhaomin Hou
DOI:10.1002/anie.200461971
日期:2005.1.28
Lanthanide Terminal Hydride Complexes Bearing Two Sterically Demanding C<sub>5</sub>Me<sub>4</sub>SiMe<sub>3</sub> Ligands. Synthesis, Structure, and Reactivity
作者:Yasumasa Takenaka、Zhaomin Hou
DOI:10.1021/om900453j
日期:2009.9.14
The acid−base reaction between lanthanide tris(alkyl) complexes Ln(CH2SiMe3)3(THF)2 and 2 equiv of HC5Me4SiMe3 in THF or hexane at room temperature resulted in the formation of metallocene complexes [(η5:η1-C5Me4SiMe2CH2)Ln(C5Me4SiMe3)(THF)] (Ln = Y (1a), Nd (1b), Sm (1c), Dy (1d), Lu (1e)), in which the metal center is bonded to one C5Me4SiMe3 ligand in a normal η5-form and to the other in a μ-η5:η1-chelate