1. Intstitue
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo 2, Prague, Czech Republic
2. J.
Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, Prague, Czech Republic
3. Institute
of Chemistry of Organometallic Compounds, CNR Pisa, via Moruzzi
1, 56124 Pisa, Italy