The mixed-metal nitridophosphate Na3TiN(PO3)3.

The title compound, tris­odium titanium nitride tris­(phos­phate), is built up from TiIIIO6 octa­hedra linked together via [N(PO3)3] groups, the latter arising from three PO3N tetra­hedra sharing an N vertex. Three sodium cations complete the structure, which is also found for Na3AlN(PO3)3. All the metal cations and the N atom occupy special positions with site symmetry 3. [ABSTRACT FROM AUTHOR]