Tunable Rh(I) Fischer carbene complexes for application in the hydroformylation of 1-octene
Mashabane, Tshegofatso L.; Ramollo, G. Kabelo; Kleinhans, George; De Doncker, Stephen; Siangwata, Shepherd; Fernandes, Manuel A.; Lemmerer, Andreas; Smith, Gregory S.; Bezuidenhout, Daniela I. (2020-05-16)
Tshegofatso L. Mashabane, G. Kabelo Ramollo, George Kleinhans, Stephen De Doncker, Shepherd Siangwata, Manuel A. Fernandes, Andreas Lemmerer, Gregory S. Smith, Daniela I. Bezuidenhout, Tunable Rh(I) Fischer carbene complexes for application in the hydroformylation of 1-octene, Journal of Organometallic Chemistry, Volume 920, 2020, 121341, ISSN 0022-328X, https://doi.org/10.1016/j.jorganchem.2020.121341
© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
https://creativecommons.org/licenses/by/4.0/
https://urn.fi/URN:NBN:fi-fe2020062946204
Tiivistelmä
Abstract
The preparation of a series of rhodium(I) complexes coordinated by various electronically tuneable Fischer carbene (FC) ligands, is reported. The Rh(I) metal complexes’ electronic properties could readily be modulated by variation of a p-N,N-dimethylaniline moiety with a ruthenocenyl substituent, or alternatively, substituting the carbene O-heteroatom for an amino-group. The electronic properties of the complexes were evaluated, and it was determined from the Tolman electronic parameters that the donor-ability of the FC ligands are comparable to N-heterocyclic carbenes. Furthermore, the facile control of the electronic properties of the complexes was demonstrated by mild oxidation of a ferrocenyl aminocarbene rhodium(I) complex, yielding the corresponding ferrocenium rhodium(I) complex cation. Finally, the complexes were evaluated as catalyst precursors for the hydroformylation of 1-octene.
Kokoelmat
- Avoin saatavuus [31995]