Mono(amidinate) Yttrium Alkyl Complexes: The Effect of Ligand Variation on Ethene Polymerization Catalysis
作者:Sergio Bambirra、Edwin Otten、Daan van Leusen、Auke Meetsma、Bart Hessen
DOI:10.1002/zaac.200600145
日期:2006.9
Yttrium dialkyl complexes were prepared for three different 2,6-diisopropylphenyl-substituted benzamidinate ligands. The electron-donating ability of the parent ligand (L1) was decreased by a pentafluorophenyl backbone substituent (L2), and enhanced by addition of a pendant Lewis base (L3). The corresponding cationic monoalkyl species were generated and compared in catalytic ethenepolymerization.