1. Department of Inorganic Chemistry, Ivan Franko National University of Lviv, Kyryla i Mefodiya Str. 6, UA-79005 Lviv, Ukraine
2. Scientific Consulting Company "Structure-Properties", Sakharov Str. 33, UA-79026 Lviv, Ukraine
3. Department of Quantic Matter Physics, University of Geneva, quai Ernest-Ansermet 24, CH-1211 Geneva 4, Switzerland