1. Institut für Chemie, Universität Hohenheim, Garbenstrasse 30, D-70599 Stuttgart, Germany
2. Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstrasse 2, 04103 Leipzig, Germany
3. Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, CZ-166 10 Praha 6, Czech Republic
4. Institute of Inorganic Chemistry of the Czech Academy of Sciences, CZ-250 68 Husinec-Řež, Czech Republic
5. Department of Chemistry and Biochemistry, Auburn University, Auburn, AL, 36849, USA