Materials Data on Ba5P3O12F by Materials Project

Ba5P3O12F crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.77–3.11 Å. In the second Ba2+ site, Ba2+ is bonded in a 7-coordinate geometry to six O2- and one F1- atom. There are a spread of Ba–O bond distances ranging from 2.69–2.94 Å. The Ba–F bond length is 2.58 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. All P–O bond lengths are 1.56 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one P5+ atom. F1- is bonded in a trigonal planar geometry to three equivalent Ba2+ atoms.