1. CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, Université de Toulouse, UPS, INP, F-31077 Toulouse, France
2. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 26, 119991 Moscow, Russian Federation
3. Institut Universitaire de France, 103, Boulevard Saint-Michel, 75005 Paris, France