Materials Data on Fe6Bi(P3O13)2 by Materials Project
Fe6Bi(P3O13)2 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are five inequivalent Fe+2.83+ sites. In the first Fe+2.83+ site, Fe+2.83+ is bonded to five O2- atoms to form FeO5 trigonal bipyramids that share a cornercorner with one FeO6 octahedra and corners with five PO4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. There are a spread of Fe–O bond distances ranging from 1.91–2.01 Å. In the second Fe+2.83+ site, Fe+2.83+ is bonded to five O2- atoms to form distorted FeO5 trigonal bipyramids that share a cornercorner with one FeO6 octahedra and corners with five PO4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Fe–O bond distances ranging from 1.89–2.03 Å. In the third Fe+2.83+ site, Fe+2.83+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two FeO6 octahedra, corners with four PO4 tetrahedra, and edges with two equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 54–55°. There are a spread of Fe–O bond distances ranging from 1.94–2.21 Å. In the fourth Fe+2.83+ site, Fe+2.83+ is bonded to six O2- atoms to form distorted FeO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with three PO4 tetrahedra, a cornercorner with one FeO5 trigonal bipyramid, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. There are a spread of Fe–O bond distances ranging from 1.93–2.24 Å. In the fifth Fe+2.83+ site, Fe+2.83+ is bonded to six O2- atoms to form distorted FeO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with three PO4 tetrahedra, a cornercorner with one FeO5 trigonal bipyramid, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 55°. There are a spread of Fe–O bond distances ranging from 1.91–2.22 Å. Bi5+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.31–2.65 Å. There are six inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra, a cornercorner with one FeO5 trigonal bipyramid, and an edgeedge with one FeO6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are a spread of P–O bond distances ranging from 1.53–1.58 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra, a cornercorner with one FeO5 trigonal bipyramid, and an edgeedge with one FeO6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are a spread of P–O bond distances ranging from 1.52–1.57 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra and corners with three FeO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 39°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra and corners with three FeO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 37°. There is three shorter (1.54 Å) and one longer (1.55 Å) P–O bond length. In the fifth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 45–55°. There are a spread of P–O bond distances ranging from 1.51–1.57 Å. In the sixth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 38–54°. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. There are twenty inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe+2.83+ and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Fe+2.83+, one Bi5+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe+2.83+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe+2.83+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to two Fe+2.83+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to two Fe+2.83+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Fe+2.83+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Fe+2.83+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a linear geometry to one Fe+2.83+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a linear geometry to one Fe+2.83+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a trigonal planar geometry to three Fe+2.83+ atoms. In the twelfth O2- site, O2- is bonded in a trigonal planar geometry to three Fe+2.83+ atoms. In the thirteenth O2- site, O2- is bonded in a 1-coordinate geometry to one Fe+2.83+, one Bi5+, and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a water-like geometry to one Fe+2.83+ and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Fe+2.83+, one Bi5+, and one P5+ atom. In the sixteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe+2.83+ and one P5+ atom. In the seventeenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe+2.83+ and one P5+ atom. In the eighteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe+2.83+ and one P5+ atom. In the nineteenth O2- site, O2- is bonded in a 2-coordinate geometry to one Fe+2.83+, one Bi5+, and one P5+ atom. In the twentieth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe+2.83+ and one P5+ atom.