1. Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 16610 Prague, Czech Republic
2. Institute
of Neuroscience and Medicine (INM-9) and Institute for Advanced Simulations
(IAS-5), Forschungszentrum Jülich GmbH, 52428 Jülich, Federal Republic of Germany
3. Department
of Physical Chemistry, Regional Centre of Advanced Technologies and
Materials, Palacky University, 771 46 Olomouc, Czech Republic