Electron-rich CpIr(biphenyl-2,2′-diyl) complexes with π-accepting carbon donor ligands

Jonathan Graeupner, Timothy P. Brewster, James D. Blakemore, Nathan D. Schley, Julianne M. Thomsen, Gary W Brudvig, Nilay Hazari, Robert H. Crabtree

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Cp*Ir III and CpIr III complexes have attracted interest as catalysts for oxidative transformations, and highly oxidizing iridium species are postulated as key intermediates in both catalytic water and C-H bond oxidation. Strongly electron-donating ligand sets have been shown to stabilize Ir IV complexes. We describe the synthesis and reactivity of complexes containing the CpIr(biphenyl-2,2′-diyl) moiety stabilized by a series of strong donor carbon-based ligands. The oxidation chemistry of these complexes has been characterized electrochemically, and a singly oxidized Ir IV species has been observed by X-band EPR for the complex CpIr(biph)(p-CNCH 2SO 2C 6H 4CH 3).

Original languageEnglish
Pages (from-to)7158-7164
Number of pages7
JournalOrganometallics
Volume31
Issue number20
DOIs
Publication statusPublished - Oct 22 2012

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Carbon
Ligands
Iridium
Oxidation
ligands
oxidation
Electrons
carbon
iridium
superhigh frequencies
Paramagnetic resonance
electrons
reactivity
chemistry
catalysts
Catalysts
Water
synthesis
water
diphenyl

ASJC Scopus subject areas

  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Graeupner, J., Brewster, T. P., Blakemore, J. D., Schley, N. D., Thomsen, J. M., Brudvig, G. W., ... Crabtree, R. H. (2012). Electron-rich CpIr(biphenyl-2,2′-diyl) complexes with π-accepting carbon donor ligands. Organometallics, 31(20), 7158-7164. https://doi.org/10.1021/om300696t

Electron-rich CpIr(biphenyl-2,2′-diyl) complexes with π-accepting carbon donor ligands. / Graeupner, Jonathan; Brewster, Timothy P.; Blakemore, James D.; Schley, Nathan D.; Thomsen, Julianne M.; Brudvig, Gary W; Hazari, Nilay; Crabtree, Robert H.

In: Organometallics, Vol. 31, No. 20, 22.10.2012, p. 7158-7164.

Research output: Contribution to journalArticle

Graeupner, J, Brewster, TP, Blakemore, JD, Schley, ND, Thomsen, JM, Brudvig, GW, Hazari, N & Crabtree, RH 2012, 'Electron-rich CpIr(biphenyl-2,2′-diyl) complexes with π-accepting carbon donor ligands', Organometallics, vol. 31, no. 20, pp. 7158-7164. https://doi.org/10.1021/om300696t
Graeupner J, Brewster TP, Blakemore JD, Schley ND, Thomsen JM, Brudvig GW et al. Electron-rich CpIr(biphenyl-2,2′-diyl) complexes with π-accepting carbon donor ligands. Organometallics. 2012 Oct 22;31(20):7158-7164. https://doi.org/10.1021/om300696t
Graeupner, Jonathan ; Brewster, Timothy P. ; Blakemore, James D. ; Schley, Nathan D. ; Thomsen, Julianne M. ; Brudvig, Gary W ; Hazari, Nilay ; Crabtree, Robert H. / Electron-rich CpIr(biphenyl-2,2′-diyl) complexes with π-accepting carbon donor ligands. In: Organometallics. 2012 ; Vol. 31, No. 20. pp. 7158-7164.
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