1. Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway
2. Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H1117 Budapest, Hungary
3. Centre for Material Sciences and Nanotechnology, University of Oslo, Sem Sælands vei 26, 0371 Oslo, Norway
4. Department of Chemistry, BMC Uppsala University, Husargatan 3, 752 37 Uppsala, Sweden
5. Department of Organic Chemistry − Ångström Laboratory, Uppsala University, Lägerhyddsvägen 1, 751 20 Uppsala, Sweden
6. Department of Chemistry and Molecular Biology, University of Gothenburg, SE-412 96 Gothenburg, Sweden
7. Department of Chemistry, University J. Selyeho, 94505 Komárno, Slovakia