Iridium complexes containing a PNP pincer ligand: syntheses, structural chemistry, and bond activations
The coordination chemistry of the monoanionic PNP pincer ligand 3,6-di-tert-butyl-1,8-bis[(diphenylphosphanyl)methyl]carbazole (Cbzdiphos) was investigated for different iridium(I) and iridium(III) complexes. Reaction of the protio ligand with [Ir(acac)(cod)] (acac = acetylacetonate; cod = 1,5-cyclo...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
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02 September 2013
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| In: |
European journal of inorganic chemistry
Year: 2013, Heft: 30, Pages: 5358-5365 |
| ISSN: | 1099-0682 |
| DOI: | https://doi.org/10.1002/ejic.201300857 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/https://doi.org/10.1002/ejic.201300857 Verlag, lizenzpflichtig, Volltext: https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/ejic.201300857 
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| Verfasserangaben: | Nora Grüger, Hubert Wadepohl, and Lutz H. Gade |
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| 245 | 1 | 0 | |a Iridium complexes containing a PNP pincer ligand |b syntheses, structural chemistry, and bond activations |c Nora Grüger, Hubert Wadepohl, and Lutz H. Gade |
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| 520 | |a The coordination chemistry of the monoanionic PNP pincer ligand 3,6-di-tert-butyl-1,8-bis[(diphenylphosphanyl)methyl]carbazole (Cbzdiphos) was investigated for different iridium(I) and iridium(III) complexes. Reaction of the protio ligand with [Ir(acac)(cod)] (acac = acetylacetonate; cod = 1,5-cyclooctadienyl) gave [(Cbzdiphos)Ir(cod)] (1). Upon hydrogenation the dihydrido complex [(Cbzdiphos)IrH2] (2) was obtained, and its reactivity in different organometallic transformations was examined. Treating 2 with ammonia afforded [(Cbzdiphos)IrH2(NH3)] (3), whereas treatment with diphenylacetylene (dpa) yielded the IrI compound [(Cbzdiphos)Ir(dpa)] (4) and trans-stilbene. Furthermore, the conversion with norbornene led to a reactive species, which activated C-H and C-Cl bonds. The reaction with THF gave a Fischer carbene [(Cbzdiphos)Ir=C(OC3H6)] (8) after double C-H bond activation, whereas treatment with benzene or chlorobenzene afforded the oxidative addition products [(Cbzdiphos)Ir(Ph)H] (5) and [(Cbzdiphos)Ir(Ph)Cl] (7). | ||
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