1. Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrent’ev Ave., 3, Novosibirsk, 630090, Russia, Fax: +7‐3832‐33‐1399
2. International Tomography Center SB RAS, Institutskaya Str., 3a, Novosibirsk, 630090, Russia, Fax: +7‐3832‐33‐1399
3. Instituite of Physico‐Chemical Problems, Belarussian State University, Leningradskaya Str., 14, Minsk, 220050, Belarus, Fax: +7‐3832‐33‐1399