Flash Communication: Ir Complexes with a PhN(CH<sub>2</sub>CH<sub>2</sub>P<sup>i</sup>Pr<sub>2</sub>)<sub>2</sub> Pincer Ligand for Reversible CO<sub>2</sub> Hydrogenation
The pincer ligand PhN(CH2CH2PiPr2)2 (iPrPNPhP) was treated with [Ir(coe)2(μ-Cl)]2 (coe = cyclooctene) under H2 to generate (iPrPNPhP)IrH2Cl (1). Reaction of 1 with LiBHEt3 formed (iPrPNPhP)IrH3 (2). The solid-state structures of 1 and 2 were determined. Compound 2 catalyzes CO2 hydrogenation to formate and formic acid dehydrogenation but gives inferior performance to systems with RN(CH2CH2PiPr2)2 (R = H or Me) ligands, demonstrating the importance of the substituent on the nitrogen donor.
Authors
- Justin C. Wedal (ORCID: https://orcid.org/0000-0003-0437-8601)
- Clayton Hert
- Julia B. Curley (ORCID: https://orcid.org/0009-0007-9096-6704)
- Brandon Q. Mercado (ORCID: https://orcid.org/0000-0002-1940-3497)
- Nilay Hazari (ORCID: https://orcid.org/0000-0001-8337-198X)
- Wesley H. Bernskoetter (ORCID: https://orcid.org/0000-0003-0738-5946)
Institutions
- Yale University (US)
- University of Missouri (US)
Publication Details
- Journal
- Organometallics
- Published
- 2025-06-21
- DOI
- https://doi.org/10.1021/acs.organomet.5c00153
- Primary Topic
- Carbon dioxide utilization in catalysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Basic Energy Sciences