1. Department of Chemistry , Technische Universität München , Lichtenbergstrasse 4 , 85747 Garching , Germany
2. Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla and Mefodiya Street 6 , 79005 Lviv , Ukraine
3. Institut für Anorganische und Analytische Chemie, Universität Münster , Corrensstrasse 30 , 48149 Münster , Germany
4. Institute of Chemistry, Częstochowa Jan Długosz University in Częstochowa , al. Armii Krajowej 13/15 , 42200 Częstochowa , Poland
5. Institute of Low Temperature and Structure Research, Polish Academy of Sciences , ul. Okólna 2 , 50-422 Wroclaw , Poland