1. Nikolaev Institute of Inorganic Chemistry; SB RAS; 3 Acad. Lavrentiev ave. 630090 Novosibirsk Russia
2. Novosibirsk State University; 2 Pirogov str. 630090 Novosibirsk Russia
3. Institute of Solid State Physics; Dresden University of Technology; 01062 Dresden Germany
4. St. Petersburg State University; 198504 St. Petersburg Russia