2. Solution Structure and Decomposition Pathway of Zwitterionic Zirconium(IV) Benzyl Complexes
   Régis M. Gauvin, Clément Mazet, Jacky Kress*
   J. Organomet. Chem. 2002, 658, 1-8

Reaction of the chelating diamido complexes Zr(ABAⁿ)(CH₂Ph)₂ [ABA¹=N,N′-(SiMe₃)₂-2-amidobenzylamido, ABA²=N,N′-(SiMePh₂)(SiMe₃)-2-amidobenzylamido] with B(C₆F₅)₃ leads to formation of the unstable zwitterionic adducts [Zr(ABAⁿ)(CH₂Ph)][(η⁶-PhCH₂)B(C₆F₅)₃] 1 (n=1) and 2 (n=2), as shown by low temperature NMR experiments that, moreover, enabled an insight into the molecular structure of these compounds in solution. Two intermediates of the decomposition of 1 and 2, that leads to complexes Zr(ABAⁿ)(C₆F₅)₂, were identified.

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DOI de la version éditeur : 10.1016/S0022-328X(02)01417-1