Materials Data on Cr3Sn3(SbO8)2 by Materials Project
Cr3Sn3(SbO8)2 is beta Vanadium nitride-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are three inequivalent Cr4+ sites. In the first Cr4+ site, Cr4+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, and edges with four SnO6 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. There are a spread of Cr–O bond distances ranging from 2.02–2.10 Å. In the second Cr4+ site, Cr4+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, edges with two equivalent CrO6 octahedra, and edges with two equivalent SnO6 octahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are a spread of Cr–O bond distances ranging from 1.89–2.12 Å. In the third Cr4+ site, Cr4+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, edges with two equivalent CrO6 octahedra, and edges with two equivalent SnO6 octahedra. The corner-sharing octahedra tilt angles range from 50–52°. There are a spread of Cr–O bond distances ranging from 2.01–2.08 Å. There are three 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 SbO6 octahedra, an edgeedge with one SbO6 octahedra, edges with two equivalent CrO6 octahedra, and edges with two equivalent SnO6 octahedra. The corner-sharing octahedra tilt angles range from 51–52°. There are a spread of Sn–O bond distances ranging from 2.03–2.13 Å. In the second Sn4+ site, Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, edges with two equivalent CrO6 octahedra, and edges with two equivalent SnO6 octahedra. The corner-sharing octahedra tilt angles range from 50–51°. There are a spread of Sn–O bond distances ranging from 2.03–2.13 Å. In the third Sn4+ site, Sn4+ is bonded to six O2- atoms to form distorted SnO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, and edges with four CrO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Sn–O bond distances ranging from 2.06–2.17 Å. There are two inequivalent Sb4+ sites. In the first Sb4+ site, Sb4+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent SnO6 octahedra, corners with four CrO6 octahedra, an edgeedge with one CrO6 octahedra, and edges with two SnO6 octahedra. The corner-sharing octahedra tilt angles range from 48–53°. There are a spread of Sb–O bond distances ranging from 1.99–2.08 Å. In the second Sb4+ site, Sb4+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent CrO6 octahedra, corners with four SnO6 octahedra, an edgeedge with one SnO6 octahedra, and edges with two CrO6 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. There are a spread of Sb–O bond distances ranging from 2.00–2.07 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr4+, one Sn4+, and one Sb4+ atom. In the second O2- site, O2- is bonded in a distorted T-shaped geometry to two Sn4+ and one Sb4+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Cr4+ and two Sn4+ atoms. In the fourth O2- site, O2- is bonded in a trigonal non-coplanar geometry to one Cr4+ and two Sn4+ atoms. In the fifth O2- site, O2- is bonded in a trigonal non-coplanar geometry to two Cr4+ and one Sn4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr4+, one Sn4+, and one Sb4+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Cr4+, one Sn4+, and one Sb4+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Cr4+, one Sn4+, and one Sb4+ atom. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Sn4+ and one Sb4+ atom. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Cr4+ and one Sb4+ atom. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Cr4+, one Sn4+, and one Sb4+ atom. In the twelfth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Cr4+, one Sn4+, and one Sb4+ atom. In the thirteenth O2- site, O2- is bonded in a 3-coordinate geometry to two Cr4+ and one Sn4+ atom. In the fourteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr4+, one Sn4+, and one Sb4+ atom. In the fifteenth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Cr4+ and one Sb4+ atom. In the sixteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr4+, one Sn4+, and one Sb4+ atom.