1. Joint Institute for High Temperatures of Russian Academy of Sciences, 13-2 Izhorskaya Street, Moscow 125124, Russia
2. Physical Department, Dagestan State University, 43-a Gadzhieva Street, Makhachkala 367000, Russia
3. Chemical Department, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia