Synchrotron powder study of Na₃V(PO₃)₃N

Polycrystalline tris­odium vanadium(III) nitridotriphosphate, Na₃V(PO₃)₃N, was prepared by thermal nitridation of a mixture of NaPO₃ and V₂O₅. The title compound is isotypic with Na₃Al(PO₃)₃N. In the crystal, the P-atom and the three O-atom sites are on general positions, whereas the Na-, V- and N-atom sites are located on threefold rotation axes. The P atom is coordinated by three O atoms and one N atom in form of a slightly distorted tetra­hedron. Three PO₃N tetra­hedra build up a nitridotriphosphate group, (PO₃)₃N, by sharing a common N atom. The V atom is coordinated by six O atoms in form of a slightly distorted octa­hedron. The Na⁺ ions occupy three crystallographically distinct sites. One Na⁺ ion is situated in an irregular polyhedral coordination environment composed of six O atoms and one N atom, while the other two Na⁺ cations are surrounded by six and nine O atoms, respectively.