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Kania, Rafal, Frederix, Pim W. J. M., Wright, Joseph A. 
ORCID: https://orcid.org/0000-0001-9603-1001, Ulijn, Rein V., Pickett, Christopher J. and Hunt, Neil T.
(2012)
Solution-phase photochemistry of a [FeFe]hydrogenase model compound: Evidence of photoinduced isomerisation.
The Journal of Chemical Physics, 136 (4).
ISSN 1089-7690
Abstract
The solution-phase photochemistry of the [FeFe] hydrogenase subsite model (µ-S(CH2)3S)Fe2(CO)4(PMe3)2 has been studied using ultrafast time-resolved infrared spectroscopy supported by density functional theory calculations. In three different solvents, n-heptane, methanol, and acetonitrile, relaxation of the tricarbonyl intermediate formed by UV photolysis of a carbonyl ligand leads to geminate recombination with a bias towards a thermodynamically less stable isomeric form, suggesting that facile interconversion of the ligand groups at the Fe center is possible in the unsaturated species. In a polar or hydrogen bonding solvent, this process competes with solvent substitution leading to the formation of stable solvent adduct species. The data provide further insight into the effect of incorporating non-carbonyl ligands on the dynamics and photochemistry of hydrogenase-derived biomimetic compounds
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Chemistry (former - to 2024) |
| UEA Research Groups: | Faculty of Science > Research Groups > Biophysical Chemistry (former - to 2017) Faculty of Science > Research Groups > Synthetic Chemistry (former - to 2017) Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Chemistry of Light and Energy Faculty of Science > Research Groups > Energy Materials Laboratory |
| Depositing User: | Rhiannon Harvey |
| Date Deposited: | 21 Mar 2012 15:47 |
| Last Modified: | 24 Sep 2024 08:54 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/38419 |
| DOI: | 10.1063/1.3679387 |
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