1. I. N. Ul'yanov Chuvash State University
2. Cheboksary
3. Russia
4. Lomonosov Moscow State University
5. Moscow
6. A. N. Nesmeyanov Institute of Organoelement Compounds
7. Russian Academy of Sciences (INEOS RAS)
8. 119991 Moscow
9. P.N. Lebedev Physical Institute of the Russian Academy of Sciences (FIAN)