[FeFe]‐Hydrogenase Mimic Employing κ2‐C, N‐Pyridine Bridgehead Catalyzes Proton Reduction at Mild Overpotential. Issue 20 (15th May 2019)

• Record Type: Journal Article
• Authors: Schippers, Esther C. F.; Nurttila, Sandra S.; Oudsen, Jean‐Pierre H.; Tromp, Moniek; Dzik, Wojciech I.; van der Vlugt, Jarl Ivar; Reek, Joost N. H.
• Is Part Of: European journal of inorganic chemistry. Issue 20(2019)
• Page Start: 2510
• Page End: 2517
• Publication Date: 2019-05-15
• Subjects: Proton reduction -- Hydrogenase mimics -- Iron -- Electrochemistry -- Homogeneous catalysis; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201900405
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : Two novel κ 2 ‐ C, N ‐pyridine bridged [FeFe]‐H2 ase mimics (1 and2 ) have been prepared and are shown to function as efficient molecular catalysts for electrocatalytic proton reduction. The elemental and structural composition of the complexes are confirmed by NMR and IR spectroscopy, high‐resolution mass spectrometry and single‐crystal X‐ray diffraction. Electrochemical investigations reveal that the complexes reduce protons at their first reduction potential, resulting in the lowest overpotential (120 mV) ever reported for [FeFe]‐H2 ase mimics in proton reduction catalysis when mild acid (phenol) is used as proton source. Abstract : The synthesis, characterization, and electrocatalytic activity of two novel κ 2 ‐ C, N ‐pyridine bridged [FeFe]‐H2 ase mimics is described. The complexes are shown to function as efficient molecular catalysts for electrocatalytic proton reduction, resulting in the lowest overpotential for [FeFe]‐H2 ase mimics reported to date.