We provide the first detailed time-resolved mechanistic information on the protonation of a model of the subsite of [FeFe]-hydrogenase, [Fe2(μ-pdt)(CO)4(PMe3)2]; the deceptively simple stoichiometric reaction is shown to be limited by the rate of protonation of the basal–apical isomer followed by its rearrangement to the transoid basal form.
![Graphical abstract: Protonation of a subsite analogue of [FeFe]-hydrogenase: mechanism of a deceptively simple reaction revealed by time-resolved IR spectroscopy](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=B912499C&imageInfo.ImageIdentifier.Year=2009)
J. A. Wright and C. J. Pickett, Chem. Commun., 2009, 5719 DOI: 10.1039/B912499C
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