1. Laboratoire de Chimie des Processus Biologiques, CNRS UMR 8229, Collège de France, 75231 Paris, France
2. School of Chemical and Physical Sciences, Keele University, Staffordshire ST5 5BG, U.K.
3. Total Research and Technology, Refining and Chemicals, Division CO2 Conversion, Feluy, 7181 Seneffe, Belgium