Ambiphilic Al−Cu Bonding

Abstract

Copper‐alumanyl complexes, [LCu‐Al(SiN Dipp )], where L=carbene=NHC iPr (N,N′‐diisopropyl‐4,5‐dimethyl‐2‐ylidene) and Me2 CAAC (1‐(2,6‐diisopropylphenyl)‐3,3,5,5‐tetramethyl‐pyrrolidin‐2‐ylidene) and featuring unsupported Al−Cu bonds, have been prepared. Divergent reactivity observed with carbodiimides and CO 2 implies an ambiphilicity in the Cu–Al interaction that is dependent on the identity of the carbene co‐ligand.