Materials Data on Ti3Fe(PO4)6 by Materials Project

Abstract

Ti3Fe(PO4)6 crystallizes in the trigonal R3 space group. The structure is three-dimensional. there are three inequivalent Ti sites. In the first Ti site, Ti is bonded to six O atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra. There is three shorter (1.92 Å) and three longer (1.98 Å) Ti–O bond length. In the second Ti site, Ti is bonded to six O atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra. There is three shorter (1.91 Å) and three longer (1.96 Å) Ti–O bond length. In the third Ti site, Ti is bonded to six O atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra. There is three shorter (1.95 Å) and three longer (1.96 Å) Ti–O bond length. Fe is bonded to six O atoms to form FeO6 octahedra that share corners with six PO4 tetrahedra. There is three shorter (1.98 Å) and three longer (1.99 Å) Fe–O bond length. There are two inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra and corners with three TiO6 octahedra. The corner-sharing octahedra tilt angles range from 23–30°. There are a spread of P–O bond distances ranging from 1.52–1.55 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra and corners with three TiO6 octahedra. The corner-sharing octahedra tilt angles range from 21–34°. There are a spread of P–O bond distances ranging from 1.53–1.55 Å. There are eight inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Ti and one P atom. In the second O site, O is bonded in a bent 150 degrees geometry to one Ti and one P atom. In the third O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one Ti and one P atom. In the fifth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the sixth O site, O is bonded in a bent 150 degrees geometry to one Ti and one P atom. In the seventh O site, O is bonded in a bent 150 degrees geometry to one Ti and one P atom. In the eighth O site, O is bonded in a bent 150 degrees geometry to one Ti and one P atom.