Supported cationic complexes: selective preparation and characterization of the well-defined electrophilic metallocenium cation [SiO–B(C6F5)3]−[Cp*ZrMe2(Et2NPh)]+ supported on silica

Abstract

The reaction of Cp*ZrMe₃, 1, with the heterogeneous activator [SiO–B(C₆F₅)₃]⁻[HNEt₂Ph]⁺, 2, has been investigated to generate, by an irreversible process of methane elimination, the well-defined cationic silica-supported metallocenium species [SiO–B(C₆F₅)₃]⁻[Cp*ZrMe₂(NEt₂Ph)]⁺, 3, as an active olefin polymerisation catalyst.