1. Department of Chemistry, National Taras Shevchenko University, Volodymyrska str. 64, Kyiv 01601, Ukraine, Fax: +380‐44‐286‐2467
2. Chemistry, School of Biomedical, Biomolecular and Chemical Sciences, The University of Western Australia, Crawley, WA 6009, Australia
3. Faculty of Chemistry, University of Wroclaw, 14 Joliot‐Curie Str., 50‐383 Wroclaw, Poland
4. Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163‐AC, 1060 Vienna, Austria
5. National High Magnetic Field Laboratory, Florida State University, 1800 E. Paul Dirac Drive, Tallahassee, Florida 32310, USA