- 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.
open archive unige:7760
Editor’s version DOI: 10.1016/S0022-328X(02)01417-1