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N-heterocyclic carbene complexes of Rh: reaction with dioxygen without oxidation.
| Title | N-heterocyclic carbene complexes of Rh: reaction with dioxygen without oxidation. |
| Publication Type | Journal Article |
| Year of Publication | 2008 |
| Authors | Praetorius JM, Allen DP, Wang R, Webb JD, Grein F, Kennepohl P, Crudden CM |
| Journal | Journal of the American Chemical Society |
| Volume | 130 |
| Issue | 12 |
| Pagination | 3724-5 |
| Date Published | 2008 Mar 26 |
| Abstract | The reaction of oxygen with rhodium complexes containing N-heterocyclic carbenes was found to give dioxygen complexes with rare square planar geometries and unusually short O-O bond lengths. Analysis of the bonding in these complexes by Rh L-edge X-ray absorption spectroscopy (XAS), Raman spectroscopy, and DFT calculations provides evidence for a bonding model in which singlet oxygen is bound to a Rh(I) d8 metal complex, rather than the more common Rh(III) d6 peroxo species with octahedral geometry and O-O bond lengths in the 1.4-1.5 A range. |
| Alternate Journal | J. Am. Chem. Soc. |
