Monomeric magnesium 1-azaallyl and β-diketiminato complexes derived from the bis(trimethylsilyl)methyl ligand: The X-ray structure of the four-coordinate planar magnesium complex [Mg{N(R)C(But)C(H)R}2] and of [Mg({N(R)C(Ph)}2CH)2]†

Abstract

Reaction of [K{N(R)C(Bu^t)C(H)R}]_n {[K(LL′)]_n} or [Li({N(R)C(Ph)}₂CH)]₂ { [Li(LL)]₂} with magnesium bromide yielded the monomeric, crystalline magnesium complexes [Mg(LL′)₂] 1 or [Mg(LL)₂] 2, which have been structurally characterised; 1 has the magnesium atom in an unusual planar environment.