1. Department
of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University,
Mlynská Dolina, SK-84215 Bratislava, Slovakia
2. Institute of Inorganic Chemistry,
Slovak Academy of Sciences, Dubravska cesta 9, SK-84236 Bratislava,
Slovakia
3. Fakultät
für Physik and Center for Computational
Materials Science, Universität Wien, Sensengasse, Wien 1090, Austria
4. Université de Lorraine, CRM2, UMR 7036, Vandoeuvre-lès-Nancy, F-54506, France
5. CNRS, CRM2, UMR 7036, Vandoeuvre-lès-Nancy, F-54506, France