1. Department of Physical and Macromolecular
Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, CZ-128 40, Prague 2, Czech Republic
2. Laboratoire MADIREL (UMR 7246), Aix-Marseille Univ. & CNRS, Centre de St Jérôme, 13397 Marseille Cedex 20, France
3. Institute of Organic Chemistry
and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, Prague 6, 162 10, Czech Republic