Ba2MgDyNbO6 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Immm space group. Ba(1) is bonded in a 9-coordinate geometry to one Mg(1), four equivalent O(1), and four equivalent O(2) atoms. Mg(1) is bonded in a square co-planar geometry to two equivalent Ba(1) and four equivalent O(1) atoms. Dy(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form DyO6 octahedra that share corners with six equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Nb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NbO6 octahedra that share corners with six equivalent Dy(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Mg(1), one Dy(1), and one Nb(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Ba(1), one Dy(1), and one Nb(1) atom.
Ba2MgDyNbO6 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Immm space group. Ba(1) is bonded in a 9-coordinate geometry to one Mg(1), four equivalent O(1), and four equivalent O(2) atoms. The Ba(1)-Mg(1) bond length is 2.89 Å. All Ba(1)-O(1) bond lengths are 2.90 Å. There are two shorter (3.03 Å) and two longer (3.23 Å) Ba(1)-O(2) bond lengths. Mg(1) is bonded in a square co-planar geometry to two equivalent Ba(1) and four equivalent O(1) atoms. All Mg(1)-O(1) bond lengths are 2.04 Å. Dy(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form DyO6 octahedra that share corners with six equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Both Dy(1)-O(2) bond lengths are 2.48 Å. All Dy(1)-O(1) bond lengths are 2.22 Å. Nb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NbO6 octahedra that share corners with six equivalent Dy(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Both Nb(1)-O(2) bond lengths are 2.16 Å. All Nb(1)-O(1) bond lengths are 2.14 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Mg(1), one Dy(1), and one Nb(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Ba(1), one Dy(1), and one Nb(1) atom.