DOI: 10.17188/1300292
title: Materials Data on Mn3Cr3(SnO8)2 by Materials Project

description: Cr3Mn3(SnO8)2 is beta Vanadium nitride-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are three inequivalent Cr6+ sites. In the first Cr6+ site, Cr6+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with two equivalent SnO6 octahedra, an edgeedge with one SnO6 octahedra, edges with two equivalent CrO6 octahedra, and edges with two equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 50–52°. There are a spread of Cr–O bond distances ranging from 1.90–1.98 Å. In the second Cr6+ site, Cr6+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with two equivalent SnO6 octahedra, an edgeedge with one SnO6 octahedra, edges with two equivalent CrO6 octahedra, and edges with two equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Cr–O bond distances ranging from 1.90–1.98 Å. In the third Cr6+ site, Cr6+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with two equivalent SnO6 octahedra, an edgeedge with one SnO6 octahedra, and edges with four MnO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Cr–O bond distances ranging from 1.89–1.99 Å. There are three inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent SnO6 octahedra, an edgeedge with one SnO6 octahedra, and edges with four CrO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Mn–O bond distances ranging from 1.92–1.98 Å. In the second Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent SnO6 octahedra, an edgeedge with one SnO6 octahedra, edges with two equivalent CrO6 octahedra, and edges with two equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 52–53°. There are a spread of Mn–O bond distances ranging from 1.92–1.98 Å. In the third Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent SnO6 octahedra, an edgeedge with one SnO6 octahedra, edges with two equivalent CrO6 octahedra, and edges with two equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 52–53°. There are a spread of Mn–O bond distances ranging from 1.92–1.98 Å. There are two inequivalent Sn4+ sites. In the first Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with two equivalent CrO6 octahedra, corners with four MnO6 octahedra, an edgeedge with one MnO6 octahedra, and edges with two CrO6 octahedra. The corner-sharing octahedra tilt angles range from 51–53°. There are a spread of Sn–O bond distances ranging from 2.05–2.15 Å. In the second Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four CrO6 octahedra, an edgeedge with one CrO6 octahedra, and edges with two MnO6 octahedra. The corner-sharing octahedra tilt angles range from 50–53°. There are a spread of Sn–O bond distances ranging from 2.06–2.14 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr6+, one Mn2+, and one Sn4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Cr6+ and one Sn4+ atom. In the third O2- site, O2- is bonded in a distorted T-shaped geometry to two Cr6+ and one Mn2+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Cr6+ and one Mn2+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Cr6+ and two Mn2+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr6+, one Mn2+, and one Sn4+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Cr6+, one Mn2+, and one Sn4+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Cr6+, one Mn2+, and one Sn4+ atom. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Cr6+ and one Sn4+ atom. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Mn2+ and one Sn4+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Cr6+, one Mn2+, and one Sn4+ atom. In the twelfth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Cr6+, one Mn2+, and one Sn4+ atom. In the thirteenth O2- site, O2- is bonded in a distorted T-shaped geometry to one Cr6+ and two Mn2+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr6+, one Mn2+, and one Sn4+ atom. In the fifteenth O2- site, O2- is bonded in a 3-coordinate geometry to two Mn2+ and one Sn4+ atom. In the sixteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr6+, one Mn2+, and one Sn4+ atom.