1. Institut für Anorganische Chemie, University of Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart, Germany
2. Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics and MTA-BME Computation Driven Chemistry Research Group, Szent Gellért tér 4, 1111 Budapest, Hungary
3. Institut für Chemie und CINSaT, Universität Kassel, Heinrich Plett-Straße 40, 34132 Kassel, Germany
4. Department of Chemistry, University of Helsinki, P.O. Box 55, 00014 University of Helsinki, Finland