1. Institute
of Inorganic
Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84536 Bratislava, Slovakia
2. Department
of Inorganic Chemistry, Comenius University, SK-84215 Bratislava, Slovakia
3. G. K. Boreskov Institute
of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospect
Lavrentieva 5, 630090 Novosibirsk, Russia