Ambiphilic Al−Cu Bonding

• Published in: Angewandte Chemie International Edition Vol. 60; no. 26; pp. 14390 - 14393
• Main Authors: Liu, Han‐Ying, Schwamm, Ryan J., Hill, Michael S., Mahon, Mary F., McMullin, Claire L., Rajabi, Nasir A.
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 21.06.2021; John Wiley and Sons Inc
• Edition: International ed. in English
• Subjects: Aluminum; Carbodiimides; Carbon dioxide; Communication; Communications; Coordination compounds; coordination modes; Copper; ligand effects; metal–metal interactions; coordination modes; metal-metal interactions; copper; aluminum; ligand effects
• ISSN: 1433-7851; 1521-3773; 1521-3773
• DOI: 10.1002/anie.202104658

Copper‐alumanyl complexes, [LCu‐Al(SiNDipp)], where L=carbene=NHCiPr (N,N′‐diisopropyl‐4,5‐dimethyl‐2‐ylidene) and Me2CAAC (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 CO2 implies an ambiphilicity in the Cu–Al interaction that is dependent on the identity of the carbene co‐ligand. Cu(ts) both ways: Carbene‐supported copper‐alumanyl complexes, [LCu‐Al(SiNDipp)], display divergent reactivity with carbodiimides and CO2, implying an ambiphilicity in the Cu–Al interaction that is dependent on the identity of the carbene co‐ligand.