1. Department of Physics Faculty of Science University of South Bohemia in České Budějovice Branišovská 1760 370 05 České Budějovice Czech Republic
2. Department of Chemistry Faculty of Science Gebze Technical University 41400 Gebze Kocaeli Turkey
3. Pavel Chábera Division of Chemical Physics Department of Chemistry Lund University Box 142 221 00 Lund Sweden