1. Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
2. Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics and MTA-BME Computation Driven Chemistry Research Group Szt Gellert ter 4, 1111 Budapest, Hungary
3. Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain