Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.

Issue 4, 2012
Previous Article Next Article

Formate oxidation via β-deprotonation in [Ni(PR2NR′2)2(CH3CN)]2+ complexes

Author affiliations


Recent studies from our laboratories have shown that the [Ni(PR2NR′2)2(CH3CN)]2+ complexes originally developed as artificial hydrogenases are also active electrocatalysts for formate oxidation (TOF ∼16 s−1). The focus of the current work is to develop a detailed understanding of the catalytic mechanism, which would aid in the design of improved catalysts for the interconversion of CO2 and formate. Based on electrochemical and spectroscopic experiments, including data for a new [Ni(PCy2NPhOMe2)2(CH3CN)]2+ complex, we propose a mechanism in which the rate-determining step is a proton transfer from the Ni–O2CH β-H to the ligand pendant base coupled with a 2e transfer to Ni(II), circumventing direct hydride transfer to the metal.

Graphical abstract: Formate oxidation via β-deprotonation in [Ni(PR2NR′2)2(CH3CN)]2+ complexes

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 30 Nov 2011, accepted on 17 Jan 2012 and first published on 16 Feb 2012

Article type: Paper
DOI: 10.1039/C2EE03341K
Citation: Energy Environ. Sci., 2012,5, 6480-6490
  •   Request permissions

    Formate oxidation via β-deprotonation in [Ni(PR2NR′2)2(CH3CN)]2+ complexes

    C. S. Seu, A. M. Appel, M. D. Doud, D. L. DuBois and C. P. Kubiak, Energy Environ. Sci., 2012, 5, 6480
    DOI: 10.1039/C2EE03341K

Search articles by author