DOI: 10.17188/1754692
title: Materials Data on Rb7SmFe6(P4O17)2 by Materials Project

description: Rb7SmFe6(P4O17)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are four inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eleven O2- atoms. There are a spread of Rb–O bond distances ranging from 2.84–3.50 Å. In the second Rb1+ site, Rb1+ is bonded in a 1-coordinate geometry to ten O2- atoms. There are a spread of Rb–O bond distances ranging from 2.88–3.58 Å. In the third Rb1+ site, Rb1+ is bonded in a 1-coordinate geometry to four O2- atoms. There are a spread of Rb–O bond distances ranging from 2.82–3.31 Å. In the fourth Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Rb–O bond distances ranging from 2.88–3.17 Å. Sm3+ is bonded to six O2- atoms to form SmO6 octahedra that share corners with six PO4 tetrahedra. There are two shorter (2.31 Å) and four longer (2.36 Å) Sm–O bond lengths. There are three inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with four PO4 tetrahedra, corners with two equivalent FeO5 trigonal bipyramids, and an edgeedge with one FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.16 Å. In the second Fe3+ site, Fe3+ is bonded to five O2- atoms to form FeO5 trigonal bipyramids that share corners with two equivalent FeO6 octahedra and corners with four PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 52–54°. There are a spread of Fe–O bond distances ranging from 1.96–2.06 Å. In the third Fe3+ site, Fe3+ is bonded to five O2- atoms to form FeO5 trigonal bipyramids that share corners with five PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.91–2.02 Å. There are four inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one SmO6 octahedra and corners with three FeO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 14°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one SmO6 octahedra, a cornercorner with one FeO6 octahedra, and corners with two FeO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 50–52°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra and corners with two FeO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 58–64°. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one SmO6 octahedra, a cornercorner with one FeO6 octahedra, and corners with two FeO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 43–44°. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. There are seventeen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Rb1+, one Fe3+, and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Rb1+, one Fe3+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Rb1+, one Fe3+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three Rb1+, one Fe3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Rb1+, one Fe3+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Rb1+ and three Fe3+ atoms. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to two Rb1+, one Fe3+, and one P5+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Rb1+, one Fe3+, and one P5+ atom. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to two Rb1+, one Sm3+, and one P5+ atom. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Rb1+, one Fe3+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a distorted linear geometry to one Rb1+, one Sm3+, and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Rb1+, one Fe3+, and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Rb1+, one Fe3+, and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a 1-coordinate geometry to two Rb1+, one Sm3+, and one P5+ atom. In the sixteenth O2- site, O2- is bonded in a 2-coordinate geometry to three Rb1+, one Fe3+, and one P5+ atom. In the seventeenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Rb1+, one Fe3+, and one P5+ atom.