1. Institute of Organic Chemistry and Biochemistry of the ASCR, v.v.i., Flemingovo
n. 2, 16610 Prague, Czech Republic
2. Prague Institute of Chemical Technology, Technická 5, Prague 6,
Czech Republic
3. J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i.,
Dolejškova 3, 18223 Prague, Czech Republic