Materials Data on PBrNF by Materials Project
PFNBr crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four PFNBr clusters. there are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to two equivalent N3-, one Br1-, and one F1- atom to form distorted corner-sharing PBrN2F tetrahedra. Both P–N bond lengths are 1.59 Å. The P–Br bond length is 2.18 Å. The P–F bond length is 1.57 Å. In the second P5+ site, P5+ is bonded to two N3-, one Br1-, and one F1- atom to form distorted corner-sharing PBrN2F tetrahedra. Both P–N bond lengths are 1.59 Å. The P–Br bond length is 2.18 Å. The P–F bond length is 1.57 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the second N3- site, N3- is bonded in a bent 120 degrees geometry to two equivalent P5+ atoms. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a single-bond geometry to one P5+ atom. In the second Br1- site, Br1- is bonded in a single-bond geometry to one P5+ atom. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one P5+ atom.