Materials Data on Mn3Fe3(SbO8)2 by Materials Project
Mn3Fe3(SbO8)2 is beta Vanadium nitride-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Mn+4.33+ sites. In the first Mn+4.33+ site, Mn+4.33+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, and edges with four equivalent FeO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Mn–O bond distances ranging from 1.92–2.00 Å. In the second Mn+4.33+ site, Mn+4.33+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, edges with two equivalent MnO6 octahedra, and edges with two equivalent FeO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Mn–O bond distances ranging from 1.92–1.99 Å. There are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, edges with two equivalent MnO6 octahedra, and edges with two equivalent FeO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Fe–O bond distances ranging from 1.95–2.13 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, and edges with four equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 52°. There are a spread of Fe–O bond distances ranging from 1.99–2.08 Å. There are two inequivalent Sb5+ sites. In the first Sb5+ site, Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four equivalent MnO6 octahedra, an edgeedge with one MnO6 octahedra, and edges with two equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 51–52°. There are two shorter (1.99 Å) and four longer (2.05 Å) Sb–O bond lengths. In the second Sb5+ site, Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four equivalent FeO6 octahedra, an edgeedge with one FeO6 octahedra, and edges with two equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Sb–O bond distances ranging from 1.97–2.09 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mn+4.33+, one Fe3+, and one Sb5+ atom. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Fe3+ and one Sb5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Mn+4.33+ and two equivalent Fe3+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Mn+4.33+ and two equivalent Fe3+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Mn+4.33+ and one Fe3+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Mn+4.33+, one Fe3+, and one Sb5+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Fe3+ and one Sb5+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Mn+4.33+ and one Sb5+ atom. In the ninth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Mn+4.33+, one Fe3+, and one Sb5+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Mn+4.33+ and one Fe3+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mn+4.33+, one Fe3+, and one Sb5+ atom. In the twelfth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Mn+4.33+ and one Sb5+ atom.