1. COSMOS-Software, 07743 Jena, Germany
2. Karlsruhe Institute of Technology (KIT), Postfach 3640, D-76021 Karlsruhe, Germany
3. Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague 166 10, Czech Republic
4. Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague 128 43, Czech Republic
5. Department of Organic Chemistry, Faculty of Science, Charles University, Prague 128 43, Czech Republic