Using Naphthalene-2-Thiolate Ligands in the Design of Hydrogenase Models With Mild Proton Reduction Overpotentials

Document Type

Article

Publication Date

2-13-2013

Department

Physical & Earth Sciences

Abstract

Diiron-carbonyl complexes coupled to naphthalene-2-thiolate ligands, [(μ-naphthalene-2-thiolato)2Fe2(CO)6 (1) and [(μ-naphthalene-2-thiolato)2Fe2(CO) 5PPh3 (2), have been usefully prepared and structurally characterized. As models for the active site of hydrogenase enzymes, these compounds have been examined as electrocatalysts for the reduction of proton to produce molecular hydrogen. In the presence of acetic acid, 1 and 2 catalyze the electrochemical production of molecular hydrogen with mild overpotentials of -0.54 and -0.51 V versus Fc/Fc+, respectively. The overpotential for compound 1 is 260 mV smaller than that of the analogous compound, [(μ-SPh)2Fe2(CO)6. © 2012 Elsevier Ltd. All rights reserved."

DOI

10.1016/j.poly.2012.11.001

First Page

164

Last Page

168

Volume

50

Issue

1

Publication Title

Polyhedron

ISSN

0277-5387

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