1. J. Heyrovský Institute of Physical Chemistry; The Czech Academy of Sciences, v.v.i.; Dolejškova 2155/3 18223 Prague 8 Czech Republic
2. Department of Inorganic Chemistry; Faculty of Science; Charles University in Prague; Hlavova 2030 12840 Prague 2 Czech Republic
3. Department of Polymers; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic