1. Chemistry
Faculty, Southern Federal University, 7 ul. Zorge, Rostov-na-Donu, 344090 Russia
2. Faculty of Physics, Moscow State University, Moscow, 119991 Russia
3. Faculty
of Physics, Southern Federal University, 5 ul. Zorge, Rostov-na-Donu, 344090 Russia
4. CNR-SPIN, L’Aquila, Italy
5. Theoretical Physics and Applied Mathematics Department, Ural Federal University, 620002 Ekaterinburg, Russia
6. Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States