DOI: 10.17188/1306410
title: Materials Data on BaP4O11 by Materials Project

description: BaP4O11 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Ba–O bond distances ranging from 2.64–2.77 Å. In the second Ba2+ site, Ba2+ is bonded to six O2- atoms to form BaO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Ba–O bond distances ranging from 2.68–2.80 Å. There are eight inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two BaO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 38–49°. There are a spread of P–O bond distances ranging from 1.48–1.65 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one BaO6 octahedra and corners with three PO4 tetrahedra. The corner-sharing octahedral tilt angles are 18°. There are a spread of P–O bond distances ranging from 1.47–1.59 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one BaO6 octahedra and corners with three PO4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. There are a spread of P–O bond distances ranging from 1.47–1.60 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one BaO6 octahedra and corners with three PO4 tetrahedra. The corner-sharing octahedral tilt angles are 11°. There are a spread of P–O bond distances ranging from 1.47–1.60 Å. In the fifth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one BaO6 octahedra and corners with three PO4 tetrahedra. The corner-sharing octahedral tilt angles are 35°. There are a spread of P–O bond distances ranging from 1.47–1.60 Å. In the sixth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two BaO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 43–55°. There are a spread of P–O bond distances ranging from 1.48–1.66 Å. In the seventh P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two BaO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 43–64°. There is two shorter (1.49 Å) and two longer (1.64 Å) P–O bond length. In the eighth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two BaO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 36–53°. There are a spread of P–O bond distances ranging from 1.48–1.66 Å. There are twenty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to one Ba2+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the eighth O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the ninth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the tenth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the eleventh O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the twelfth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ba2+ and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the fifteenth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the sixteenth O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the seventeenth O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the eighteenth O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the nineteenth O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the twentieth O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom. In the twenty-first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ba2+ and one P5+ atom. In the twenty-second O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one P5+ atom.