1. Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
2. Central Analytical Laboratory, Institute of Organic Chemistry and Biochemistry of the Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic
3. Department of Nuclear Spectroscopy, Nuclear Physics Institute of the Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic