title: A phosphoramidite-based [FeFe]H2ase functional mimic displaying fast electrocatalytic proton reduction.
abstract: A phosphoramidite modified [FeFe]H2ase mimic is studied as a model for photodriven production of H2. On cathodic activation, the pyridyl-phosphoramidite complex exhibits a strongly enhanced rate of proton reduction over the previously reported pyridylphosphine model at the same overpotential. Analysis of the cyclic voltammograms shows an apparent H2 evolution rate strongly influenced by the presence of both side-bound pyridyl and phosphorous-bound dimethylamino moieties at the phosphoramidite ligands. This difference is ascribed to the basic amines acting as proton relays.
authors.affiliation: Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands. j.n.h.reek@uva.nl.
authors.forename: Sofia
authors.initials: S
authors.lastname: Derossi
authors.forename: René
authors.initials: R
authors.lastname: Becker
authors.forename: Ping
authors.initials: P
authors.lastname: Li
authors.forename: František
authors.initials: F
authors.lastname: Hartl
authors.forename: Joost N H
authors.initials: JN
authors.lastname: Reek