Iridium complexes of a chelating bis(iminoxolene): augmentation of metal–metal π bonding by metal–ligand π bonding
Abstract
-symmetric stereoisomer. The iridium-iridium distance, 2.5584(4) Å, is extremely short for an unsupported iridium-iridium bond. This is attributed to donor-acceptor interactions between filled metal dπ orbitals on one iridium and empty metal-iminoxolene π* orbitals on the other iridium fostering a significant degree of metal-metal π bonding. The dimer can be reduced to a monomeric four-coordinate anion which is alkylated by iodomethane to form a five-coordinate methyliridium complex. In both of these complexes, the ester groups in the bridge are not bound to iridium.
Fields of Study & Subjects
Organometallic Complex Synthesis and Catalysis
Synthesis and characterization of novel inorganic/organometallic compounds
Coordination Chemistry and Organometallics
Publication details
- Journal / source
- Dalton Transactions
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 55
- Issue
- 5
- Pages
- 2088–2099
- Publication date
- 1 January 2026
- Language
- EN