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Well-Defined Iron Catalyst for Improved Hydrogenation of Carbon Dioxide and Bicarbonate

Author:
Ziebart, Carolin, Federsel, Christopher, Anbarasan, Pazhamalai, Jackstell, Ralf, Baumann, Wolfgang, Spannenberg, Anke, Beller, Matthias
Source:
Journal of the American Chemical Society 2012 v.134 no.51 pp. 20701-20704
ISSN:
1520-5126
Subject:
bicarbonates, carbon dioxide, catalysts, hydrogenation, iron, nuclear magnetic resonance spectroscopy
Abstract:
The most efficient, stable, and easy-to-synthesize non-noble metal catalyst system for the reduction of CO₂ and bicarbonates is presented. In the presence of the iron(II)-fluoro-tris(2-(diphenylphosphino)phenyl)phosphino]tetrafluoroborate complex 3, the hydrogenation of bicarbonates proceeds in good yields with high catalyst productivity and activity (TON > 7500, TOF > 750). High-pressure NMR studies of the hydrogenation of carbon dioxide demonstrate that the corresponding iron-hydridodihydrogen complex 4 is crucial in the catalytic cycle.
Agid:
5387499