Reactivity of iridium(I) PNP amido complexes toward protonation and oxidation
2013 | journal article. A publication with affiliation to the University of Göttingen.
Jump to: Cite & Linked | Documents & Media | Details | Version history
Cite this publication
Reactivity of iridium(I) PNP amido complexes toward protonation and oxidation
Askevold, B.; Friedrich, A.; Buchner, M. R.; Lewall, B.; Filippou, A. C.; Herdtweck, E. & Schneider, S. (2013)
Journal of Organometallic Chemistry, 744 pp. 35-40. DOI: https://doi.org/10.1016/j.jorganchem.2013.04.022
Documents & Media
Details
- Authors
- Askevold, Bjorn; Friedrich, Anja; Buchner, Magnus R.; Lewall, Burhanshah; Filippou, Alexander C.; Herdtweck, Eberhardt; Schneider, Sven
- Abstract
- Iridium PNP amido complex [Ir(PMe3){N((CH2CH2PPr2)-Pr-i)(2)}] (3(PMe3)) was prepared in high yield starting from ethylene amine complex [Ir(C2H4){HN((CH2CH2PPr2)-Pr-i)(2)}]PF6. The high nucleophilicity of the amido nitrogen atom is demonstrated by facile N-methylation with MeOTf. The N-basicity within the series [IrL {N((CH2CH2PPr2)-Pr-i)(2)}] (3(L); L = PMe3, cyclooctene, CO) is quantified by determination of the corresponding amine complex pK(a) values. Examination of chemical and electrochemical oxidation of 3(L) point toward decomposition of the primary oxidation product by ligand centered disproportionation. The strong dependence of the basicity and oxidation potentials on the nature of L is rationalized on the basis of 3c-4e N-M-L pi-interactions. (C) 2013 Elsevier B.V. All rights reserved.
- Issue Date
- 2013
- Status
- published
- Publisher
- Elsevier Science Sa
- Journal
- Journal of Organometallic Chemistry
- ISSN
- 0022-328X
- Sponsor
- Deutsche Forschungsgemeinschaft [SCHN950/2-1]; IDK NanoCat
