1. Institut für Anorganische Chemie, Karlsruhe Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany
2. Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, POB 17, 1525 Budapest, Hungary
3. Department of Chemistry and Physics, University of Almería, Ctra. Sacramento s/n, 04120 Almería, Spain
4. Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, 1521 Budapest, Hungary, http://iaachem.bme.hu