1. Institute
of Chemistry, University of Tartu, Ravila 14a Str, 50411 Tartu, Estonia
2. Institute
of Computer Sciences, University of Tartu, J. Liivi 2 Str, 50409 Tartu, Estonia
3. Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
4. Institut
für Organische Chemie und Makromolekulare Chemie, Friedrich-Schiller-Universität Jena, Humboldtstraße 10, 07743 Jena, Germany
5. School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand