Room temperature hydrogenation of CO2 utilizing a cooperative phosphorus pyridone-based iridium complex
Room temperature hydrogenation of CO2 utilizing a cooperative phosphorus pyridone-based iridium complex
The synthesis, characterization and application of a new complex, [Ir(κ2-P,N-6-DCyPon*)(COD)] (1), where 6-DCyPon* is the anionic species, 6-dicyclohexylphosphino-2-oxo-pyridinide, is reported herein. Complex 1 was found to be an active catalyst in the hydrogenation of CO2 at room temperature. The ligand, 6-DCyPon*, is derived via deprotonation of a novel pro-ligand, 6-DCyPon (6-dicyclohexylphosphino-2-pyridone) during the synthesis of 1. The ligand is shown to participate within the reversible hydrogenation of 1, via a cooperative process, in which the species, [IrH3(κ2-P,N-6-DCyPon)(COD)] (2), was spectroscopically characterized, where 1 reacts with two equivalents of H2.
Carbon Dioxide, Hydrogenation, Ligand Cooperation, Proton Responsive Ligands, Room Temperature Homogeneous Catalysis
Siangwata, Shepherd
a6d85ba1-d1fa-4eb1-80c7-672fe590b961
Hamilton, Alex
9e0da4d2-3894-4bb9-993f-786ea4c45aa8
Tizzard, Graham J.
8474c0fa-40df-43a6-a662-7f3c4722dbf2
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Owen, Gareth R.
fd633ee9-dcaa-438c-9b3b-82e9d091a1c6
22 April 2024
Siangwata, Shepherd
a6d85ba1-d1fa-4eb1-80c7-672fe590b961
Hamilton, Alex
9e0da4d2-3894-4bb9-993f-786ea4c45aa8
Tizzard, Graham J.
8474c0fa-40df-43a6-a662-7f3c4722dbf2
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Owen, Gareth R.
fd633ee9-dcaa-438c-9b3b-82e9d091a1c6
Siangwata, Shepherd, Hamilton, Alex and Tizzard, Graham J.
,
et al.
(2024)
Room temperature hydrogenation of CO2 utilizing a cooperative phosphorus pyridone-based iridium complex.
ChemCatChem, 16 (8), [e202301627].
(doi:10.1002/cctc.202301627).
Abstract
The synthesis, characterization and application of a new complex, [Ir(κ2-P,N-6-DCyPon*)(COD)] (1), where 6-DCyPon* is the anionic species, 6-dicyclohexylphosphino-2-oxo-pyridinide, is reported herein. Complex 1 was found to be an active catalyst in the hydrogenation of CO2 at room temperature. The ligand, 6-DCyPon*, is derived via deprotonation of a novel pro-ligand, 6-DCyPon (6-dicyclohexylphosphino-2-pyridone) during the synthesis of 1. The ligand is shown to participate within the reversible hydrogenation of 1, via a cooperative process, in which the species, [IrH3(κ2-P,N-6-DCyPon)(COD)] (2), was spectroscopically characterized, where 1 reacts with two equivalents of H2.
Text
ChemCatChem - 2024 - Siangwata - Room Temperature Hydrogenation of CO2 Utilizing a Cooperative Phosphorus Pyridone‐Based
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Accepted/In Press date: 21 January 2024
e-pub ahead of print date: 31 January 2024
Published date: 22 April 2024
Keywords:
Carbon Dioxide, Hydrogenation, Ligand Cooperation, Proton Responsive Ligands, Room Temperature Homogeneous Catalysis
Identifiers
Local EPrints ID: 488665
URI: http://eprints.soton.ac.uk/id/eprint/488665
ISSN: 1867-3880
PURE UUID: 25fc64c7-dbd0-4387-9e6a-c477f4130889
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Date deposited: 04 Apr 2024 16:34
Last modified: 03 May 2024 16:40
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Author:
Shepherd Siangwata
Author:
Alex Hamilton
Author:
Gareth R. Owen
Corporate Author: et al.
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