1. Department of Crystallography , St. Petersburg State University , 199034 St. Petersburg , Russian Federation
2. Unité de Catalyse et Chimie du Solide (UCCS) , UMR 8181 CNRS, Université Lille 1 Sciences et Technologies , 59655 Villeneuve d’ASCQ , France
3. Nanomaterials Research Center, Kola Science Center, Russian Academy of Sciences , 184200 Apatity , Russian Federation
4. Inorganic Chemistry Division, Department of Chemistry , Moscow State University , GSP-1, 119991 Moscow , Russian Federation
5. Kola Science Center, Russian Academy of Sciences , 184209 Apatity , Russian Federation