1. Kimika Fakultatea; Euskal Herriko Unibertsitatea (UPV/EHU); P.K. 1072 20080 Donostia Euskadi Spain
2. Donostia International Physics Center (DIPC); P.K. 1072 20080 Donostia Euskadi Spain
3. IKERBASQUE; Basque Foundation for Science; Maria Diaz de Haro 3 48013 Bilbao Spain
4. Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 1 35032 Marburg Germany