1. Department of Theoretical Chemistry; Institute of Inorganic Chemistry; Slovak Academy of Sciences; SK-84536 Bratislava Slovakia
2. Department of Computer Science; Faculty of Mathematics, Physics and Informatics, Comenius University; SK-84248 Bratislava Slovakia
3. Department of Chemistry; The Centre for Theoretical and Computational Chemistry (CTCC), UiT, The Arctic University of Norway; N-9037 Tromsø Norway
4. Department of Inorganic Chemistry; Faculty of Natural Sciences, Comenius University; SK-84215 Bratislava Slovakia
5. Computing Centre; Slovak Academy of Sciences; SK-84545 Bratislava Slovakia