1. J. Heyrovský Institute of Physical Chemistry; Academy of Sciences of the Czech Republic; v.v.i., Dolejškova 3 182 23 Prague 8 Czech Republic
2. Department of Physical and Macromolecular Chemistry; Faculty of Science; Charles University; Hlavova 8 128 43 Prague 2 Czech Republic
3. School of Chemistry; University of St Andrews; Purdie Building St Andrews KY16 9ST UK
4. Advanced Microscopy Laboratory (LMA); Nanoscience Institute of Aragon (INA); University of Zaragoza; Mariano Esquillor, Edificio I+D Zaragoza 50018 Spain
5. Institute of Organic Chemistry and Biochemistry; Academy of Sciences of the Czech Republic; v.v.i., Flemingovo nám. 2 16610 Prague Czech Republic