[FeFe]-Hydrogenase Models: Unexpected Variation in Protonation Rate between Dithiolate Bridge Analogues
Jablonskytė, A, Wright, JA ORCID: https://orcid.org/0000-0001-9603-1001 and Pickett, CJ
(2010)
[FeFe]-Hydrogenase Models: Unexpected Variation in Protonation Rate between Dithiolate Bridge Analogues.
European Journal of Inorganic Chemistry, 2011 (7).
pp. 1033-1037.
ISSN 1099-0682
Abstract
The model [FeFe]-hydrogenase subsite Fe2(µ-odt)(CO)4(PMe3)2 (odt = 2-oxapropane-1,3-dithiolate) has been crystallized for the first time, revealing an apical–basal arrangement of the two phosphane groups. Protonation of this species has been studied by a combination of stopped-flow ultraviolet and infrared techniques along with time-resolved NMR spectroscopy. The kinetics of the protonation are similar to those for Fe2(µ-edt)(CO)4(PMe3)2 (edt = ethane-1,2-dithiolate) and are much slower than those for the protonation of Fe2(µ-pdt)(CO)4(PMe3)2 (pdt = propane-1,3-dithiolate). The dithiolate bridge length is therefore not the key determinant of reactivity in these simple model systems.
Item Type: | Article |
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Faculty \ School: | Faculty of Science > School of Chemistry |
Related URLs: | |
Depositing User: | Rhiannon Harvey |
Date Deposited: | 21 Mar 2012 16:02 |
Last Modified: | 12 Aug 2022 16:36 |
URI: | https://ueaeprints.uea.ac.uk/id/eprint/38422 |
DOI: | 10.1002/ejic.201001072 |
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