Materials Data on BaZnFe6O11 by Materials Project
BaFe6ZnO11 is beta indium sulfide-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Ba–O bond distances ranging from 2.73–3.34 Å. In the second Ba2+ site, Ba2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Ba–O bond distances ranging from 2.73–3.35 Å. There are ten inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Fe–O bond distances ranging from 1.94–2.30 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form distorted FeO6 octahedra that share corners with six FeO6 octahedra, corners with three equivalent FeO4 tetrahedra, and a faceface with one FeO6 octahedra. The corner-sharing octahedra tilt angles range from 51–55°. There are a spread of Fe–O bond distances ranging from 1.93–2.28 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO4 tetrahedra and a faceface with one FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.05–2.07 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six ZnO4 tetrahedra and edges with six FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.08 Å. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with five FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.96–2.01 Å. In the sixth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with five FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.92–2.08 Å. In the seventh Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra, a cornercorner with one FeO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 54–55°. There are a spread of Fe–O bond distances ranging from 1.95–2.10 Å. In the eighth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra, a cornercorner with one FeO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with five FeO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Fe–O bond distances ranging from 1.97–1.99 Å. In the ninth Fe3+ site, Fe3+ is bonded to four O2- atoms to form corner-sharing FeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 18–61°. There is one shorter (1.90 Å) and three longer (1.91 Å) Fe–O bond length. In the tenth Fe3+ site, Fe3+ is bonded to four O2- atoms to form corner-sharing FeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 20–65°. There is one shorter (1.90 Å) and three longer (1.91 Å) Fe–O bond length. There are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–64°. There are a spread of Zn–O bond distances ranging from 1.97–2.03 Å. In the second Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–61°. There are a spread of Zn–O bond distances ranging from 1.96–2.06 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form distorted corner-sharing OZnFe3 trigonal pyramids. In the second O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form distorted corner-sharing OZnFe3 trigonal pyramids. In the third O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form distorted OZnFe3 trigonal pyramids that share a cornercorner with one OZnFe3 tetrahedra, corners with three OZnFe3 trigonal pyramids, and an edgeedge with one OFe4 tetrahedra. In the fourth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the fifth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form distorted OZnFe3 tetrahedra that share corners with four OZnFe3 trigonal pyramids and an edgeedge with one OFe4 trigonal pyramid. In the sixth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+ and three Fe3+ atoms. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+ and three Fe3+ atoms. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+ and three Fe3+ atoms. In the tenth O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+ and three Fe3+ atoms. In the eleventh O2- site, O2- is bonded to four Fe3+ atoms to form a mixture of distorted edge and corner-sharing OFe4 tetrahedra. In the twelfth O2- site, O2- is bonded to four Fe3+ atoms to form a mixture of distorted edge and corner-sharing OFe4 trigonal pyramids. In the thirteenth O2- site, O2- is bonded in a 3-coordinate geometry to three Ba2+ and three Fe3+ atoms. In the fourteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ba2+ and three Fe3+ atoms. In the fifteenth O2- site, O2- is bonded in a 3-coordinate geometry to three Ba2+ and three Fe3+ atoms. In the sixteenth O2- site, O2- is bonded in a 3-coordinate geometry to three Ba2+ and three Fe3+ atoms.