Catalytic hydrogen production by a NiRu mimic of NiFe hydrogenases involves a proton-coupled electron transfer stepElectronic supplementary information (ESI) available: Experimental procedures and additional crystallographic, spectroscopic, electrochemical and electrocatalytic data. CCDC 919653. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c3cc40987b

A combined electrochemical and theoretical study suggests that hydrogen evolution from weak acids catalyzed by a structural mimic of the active site of NiFe hydrogenases [Ni(xbsms)Ru(C 6 Me 6 )Cl] + proceeds through proton-coupled electron transfer steps. Hydrogen evolution from weak acids catalyzed by a structural mimic of the active site of NiFe hydrogenases [Ni(xbsms)Ru(C 6 Me 6 )Cl] + proceeds through proton-coupled electron transfer steps.