1. Department of Inorganic Chemistry Ivan Franko National University of Lviv Kyryla and Mephodiya Street 6 79005 Lviv Ukraine
2. Institute of Low Temperature and Structure Research Polish Academy of Sciences 50–950 Wroclaw Poland
3. Institut für Anorganische und Analytische Chemie Universität Münster Corrensstrasse 30 48149 Münster Germany
4. Institute of Chemistry Jan Dlugosz University in Czestochowa al. Armii Krajowej 13/15 42‐200 Czestochowa Poland