1. Department of Organic Chemistry, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia
2. Department of Chemistry, Juniata College, 1700 Moore Street, Huntingdon, Pennsylvania 16652, United States
3. Department of Physical Chemistry, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia
4. URCOM, EA 3221, INC3M CNRS FR-3038, UFR Sciences & Techniques, University of Le Havre, 25 rue Philippe Lebon, B.P. 540, F-76058 Le Havre Cedex, France