1. J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, CZ-18223 Prague 8, Czech Republic
2. Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
3. Department of Chemical Physics, Faculty of Mathematics and Physics, Comenius University, 84215 Bratislava, Slovakia
4. Institute of Physics, Silesian University, 74601 Opava, Czech Republic
5. William R. Wiley Environmental Molecular Sciences Laboratory, Battelle, Pacific Northwest National Laboratory, K8-91, P.O. Box 999, Richland, Washington 99352, USA