Title of article :
Biaryl-bridged Schiff base complexes of zirconium alkyls: synthesis structure and stability
Author/Authors :
Paul V Knight، نويسنده , , Paul N OʹShaughnessy، نويسنده , , Ian J Munslow، نويسنده , , Brian S Kimberley، نويسنده , , Peter Scott، نويسنده ,
Issue Information :
دوفصلنامه با شماره پیاپی سال 2003
Abstract :
Three substituted salicylaldimine derivatives H2L1–3 of 2,2′-diamino-6,6′-dimethylbiphenyl give, under appropriate conditions, isolable alkyls of zirconium [ZrL1–3R2] (R=CH2Ph, CH2But). Two molecular structures confirm their cis-α geometry (C2-symmetric with cis alkyl ligands). They decompose via 1,2-migratory insertion of an alkyl group to imine, followed in some instances by a second similar reaction. The dimeric molecular structure of one such doubly-inserted product is presented. The kinetics of decomposition by this process are studied briefly, and it is noted that the rate increases with increased steric demand of the salicylaldimine unit.
Keywords :
Zirconium alkyls , Synthesis , Schiff base complexes
Journal title :
Journal of Organometallic Chemistry
Journal title :
Journal of Organometallic Chemistry