AG+ AS SUBSTITUENT OF AN ALKALINE METAL I N AG2SRMNV2O8

Single crystals of Ag-2 SrMnV2O8 have been prepared by reactions of me tallic silver and a mixture of SrCO3, MnCO3 . H2O and V2O5 . X-Ray inv estigations showed monoclinic symmetry, space group C-2h(6)-C2/c, a = 9.7022(9), b = 5.5882(5), c = 13.894(1), beta = 90.41(1)degrees, Z = 4 . The crystal structure is isotypic to Na2BaCuV2O8 and includes VO4 te trahedra, MnO6 octahedra as well as irregular AgO8 and SrO10 polyhedra . Ag2SrMnV2O8 is characterized by a [MnV2O8] network incorporating Ag and Sr2+ or a [Ag2V2O8] frame incorporating Mn2+ and Sr2+ ions. Ag+ i s able to replace an alkali ion in the cationic part of the crystal st ructure.