Unexpected reactions of pentafluorophenylboron compounds with η-cyclopentadienyl(benzamidinato)zirconium derivatives

Abstract

The new base-free compounds [{Zr(η-C₅R₅)[η-CPh{N(SiMe₃)}₂]Cl}][B(C₆F₅)₃X]₂(R = H, X = Me, CH₂Ph or R = Me, X = C₆F₅*) and [{(η-C₅H₅)[η-CPh{N(SiMe₃)}₂](C₆F₅)}Zr(µ-Me)B(C₆F₅)₃}],* are prepared; the formation of the latter requires the transfer of a C₆F₅ group from [B(C₆F₅)₄]:* indicates the crystal structure has been determined.