A COPPER MONOFLUOROPHOSPHATE, CU(H2O)2(NH4)2(PO3F)2

The structure of diammonium diaquabis(monofluorophosphato) copper, 2[NH4][Cu(PO3F)2(H2O)2], consists of CuO6 octahedra and NH4 and PO3F tetrahedra held together by hydrogen bonds involving one H atom of the ammonium group and the H atoms of the water molecules. The Cu atoms are octahedrally coordinated by two water molecules at the apical positions and four 0 atoms belonging to four PO3F groups.