Lewis Acid Stabilized Methylidene and Oxoscandium Complexes.

The article presents a study on whether Al(CH3)3 could stabilize a highly polarized ScCH2 ligand, and the preparation of such a ligand, its isolation, and use as a Brønsted base. It states that the nycleophilic nature of the methylidene carbon, coupled with the large ionic radius of the Sc(III) iron, permits for this rare motif to coordinate two Al(CH3)3 ligands, one of which seems to be dissociating to allow reactivity.