1. FB Chemie der TUK, Erwin-Schrödinger-Str. 54, 67663 Kaiserslautern, Germany
2. Department Chemie und Pharmazie, FAU Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
3. Institut für Anorganische und Analytische Chemie, Albertstr. 21, 79104 Freiburg, Germany
4. Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10/112, 162 00 Praha 6, Czech Republic
5. Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Praha 8, Czech Republic