1. Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava 842 15, Slovakia
2. Institute of Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava 842 15, Slovakia
3. Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava 842 15, Slovakia
4. Department of Physics, Faculty of Natural Sciences, Budapest University of Technology and Economics, Budapest 1111, Hungary