New dialkylamido complexes of transition metals in Groups 4 and 5 stabilised by terdentate ligands

Abstract

Application of the terdentate chelating diaminoamido ligand ^–N(CH₂CH₂NEt₂)₂(L) has enabled the straightforward preparation and isolation of new ternary dialkylamido complexes [MX₂L](M = V or Ti; X = Cl, Me, or Ph), [NbCl₂L₂], and [ZrCl₃L]. These compounds are resistant to the types of rearrangements that have frustrated previous attempts to find general routes to dialkylamido complexes containing other ligands available for substitutions and other manipulations. This approach now provides access to a broad class of compounds of interest in the study of organometallic amides.