Crystal Structure of a New Synthetic Homologue of the Switzerite Series

摘要

The switzerite homologous series includes natural and synthetic phases described by the general chemical formula Mn_3(PO_4)_2xnH_2O.The values n=7 and 4 in this series correspond to the compositions of the minerals switzerite and metaswitzerite,respectively.One more homologous member,containing 0.5 water molecules,was synthesized and studied by us as part of a systematic study of 3d transition-metal phosphates[1].