BaDyFe4O7 crystallizes in the cubic F-43m space group. Ba(1) is bonded to twelve equivalent O(1) atoms to form BaO12 cuboctahedra that share corners with twelve equivalent Ba(1)O12 cuboctahedra, edges with twelve equivalent Fe(1)O4 tetrahedra, and faces with four equivalent Dy(1)O6 octahedra. Dy(1) is bonded to six equivalent O(1) atoms to form DyO6 octahedra that share corners with twelve equivalent Fe(1)O4 tetrahedra and faces with four equivalent Ba(1)O12 cuboctahedra. Fe(1) is bonded to one O(2) and three equivalent O(1) atoms to form FeO4 tetrahedra that share corners with three equivalent Dy(1)O6 octahedra, corners with six equivalent Fe(1)O4 tetrahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 53°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1), one Dy(1), and two equivalent Fe(1) atoms. In the second O site, O(2) is bonded in a tetrahedral geometry to four equivalent Fe(1) atoms.
BaDyFe4O7 crystallizes in the cubic F-43m space group. Ba(1) is bonded to twelve equivalent O(1) atoms to form BaO12 cuboctahedra that share corners with twelve equivalent Ba(1)O12 cuboctahedra, edges with twelve equivalent Fe(1)O4 tetrahedra, and faces with four equivalent Dy(1)O6 octahedra. All Ba(1)-O(1) bond lengths are 3.22 Å. Dy(1) is bonded to six equivalent O(1) atoms to form DyO6 octahedra that share corners with twelve equivalent Fe(1)O4 tetrahedra and faces with four equivalent Ba(1)O12 cuboctahedra. All Dy(1)-O(1) bond lengths are 2.26 Å. Fe(1) is bonded to one O(2) and three equivalent O(1) atoms to form FeO4 tetrahedra that share corners with three equivalent Dy(1)O6 octahedra, corners with six equivalent Fe(1)O4 tetrahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 53°. The Fe(1)-O(2) bond length is 2.02 Å. All Fe(1)-O(1) bond lengths are 1.96 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1), one Dy(1), and two equivalent Fe(1) atoms. In the second O site, O(2) is bonded in a tetrahedral geometry to four equivalent Fe(1) atoms.