1. IFP Energies Nouvelles, Rond‐point de l'Échangeur de Solaize, BP 3, 69360 Solaize, France, http://www.ifpenergiesnouvelles.fr
2. van't Hoff Institute for Molecular Sciences, Faculty of Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands, http://www.science.uva.nl/research/imc/homkat/index.html
3. Crystal and Structural Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
4. Centre de Diffractométrie Henri Longchambon, Site CLEA – Bât. ISA 3ème étage, 5 rue de La Doua, 69100 Villeurbanne, France