1. Chemistry Department, Brock University, 500 Glenridge Ave., St. Catharines, ON, L2S 3A1, Canada, http://www.brocku.ca/mathematics‐science/departments‐and‐centres/chemistry/people/faculty/georgii‐i‐nikonov
2. CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France
3. Université de Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
4. N. S. Kurnakov Institute of General and Inorganic Chemistry, 31 Leninskii Prosp., Moscow 119991, Russia
5. Chemistry Department, University of Durham, South Road, Durham DH1 3LE, UK