Citation: Cf. Caro et al., Monomeric magnesium 1-azaallyl and beta-diketiminato complexes derived from the bis(trimethylsilyl)methyl ligand: The X-ray structure of the four-coordinate planar magnesium complex [Mg{N(R)C(Bu-t)C(H)R}(2)] and of [Mg({N(R)C(Ph)}(2)CH)(2)], CHEM COMMUN, (15), 1999, pp. 1433-1434