DOI: 10.17188/1305081
title: Materials Data on Ti5Mn(PO4)6 by Materials Project

description: Ti5Mn(PO4)6 crystallizes in the trigonal R3 space group. The structure is three-dimensional. there are five inequivalent Ti+3.20+ sites. In the first Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra, a faceface with one TiO6 octahedra, and a faceface with one MnO6 pentagonal pyramid. All Ti–O bond lengths are 2.11 Å. In the second Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share corners with six PO4 tetrahedra and faces with two TiO6 octahedra. There are three shorter (2.15 Å) and three longer (2.19 Å) Ti–O bond lengths. In the third Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra and a faceface with one TiO6 octahedra. There are three shorter (1.95 Å) and three longer (2.10 Å) Ti–O bond lengths. In the fourth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra and a faceface with one TiO6 octahedra. There is three shorter (1.90 Å) and three longer (2.05 Å) Ti–O bond length. In the fifth Ti+3.20+ site, Ti+3.20+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra and a faceface with one TiO6 octahedra. There are three shorter (1.93 Å) and three longer (2.09 Å) Ti–O bond lengths. Mn2+ is bonded to six O2- atoms to form distorted MnO6 pentagonal pyramids that share corners with six PO4 tetrahedra and a faceface with one TiO6 octahedra. There are three shorter (2.02 Å) and three longer (2.27 Å) Mn–O bond lengths. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with five TiO6 octahedra and a cornercorner with one MnO6 pentagonal pyramid. The corner-sharing octahedra tilt angles range from 24–52°. There are a spread of P–O bond distances ranging from 1.50–1.58 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with five TiO6 octahedra and a cornercorner with one MnO6 pentagonal pyramid. The corner-sharing octahedra tilt angles range from 26–50°. There are a spread of P–O bond distances ranging from 1.54–1.58 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Ti+3.20+ and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Ti+3.20+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Mn2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two Ti+3.20+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to one Ti+3.20+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Ti+3.20+, one Mn2+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two Ti+3.20+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to one Ti+3.20+ and one P5+ atom.