BaDy2O4 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to one O(1), two equivalent O(3), and three equivalent O(2) atoms to form a mixture of corner and edge-sharing DyO6 octahedra. The corner-sharing octahedral tilt angles range from 50-58°. In the second Dy site, Dy(2) is bonded to one O(3), two equivalent O(1), and three equivalent O(4) atoms to form a mixture of corner and edge-sharing DyO6 octahedra. The corner-sharing octahedral tilt angles range from 50-58°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Dy(1), and two equivalent Dy(2) atoms. In the second O site, O(2) is bonded to two equivalent Ba(1) and three equivalent Dy(1) atoms to form a mixture of distorted corner and edge-sharing OBa2Dy3 square pyramids. In the third O site, O(3) is bonded to two equivalent Ba(1), one Dy(2), and two equivalent Dy(1) atoms to form a mixture of distorted corner and edge-sharing OBa2Dy3 trigonal bipyramids. In the fourth O site, O(4) is bonded to two equivalent Ba(1) and three equivalent Dy(2) atoms to form a mixture of distorted corner and edge-sharing OBa2Dy3 trigonal bipyramids.
BaDy2O4 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Ba(1)-O(1) bond lengths are 2.93 Å. Both Ba(1)-O(2) bond lengths are 2.73 Å. There is one shorter (2.89 Å) and one longer (2.93 Å) Ba(1)-O(3) bond length. Both Ba(1)-O(4) bond lengths are 2.73 Å. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to one O(1), two equivalent O(3), and three equivalent O(2) atoms to form a mixture of corner and edge-sharing DyO6 octahedra. The corner-sharing octahedral tilt angles range from 50-58°. The Dy(1)-O(1) bond length is 2.30 Å. Both Dy(1)-O(3) bond lengths are 2.26 Å. There is one shorter (2.30 Å) and two longer (2.35 Å) Dy(1)-O(2) bond lengths. In the second Dy site, Dy(2) is bonded to one O(3), two equivalent O(1), and three equivalent O(4) atoms to form a mixture of corner and edge-sharing DyO6 octahedra. The corner-sharing octahedral tilt angles range from 50-58°. The Dy(2)-O(3) bond length is 2.29 Å. Both Dy(2)-O(1) bond lengths are 2.31 Å. There is one shorter (2.24 Å) and two longer (2.33 Å) Dy(2)-O(4) bond lengths. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Dy(1), and two equivalent Dy(2) atoms. In the second O site, O(2) is bonded to two equivalent Ba(1) and three equivalent Dy(1) atoms to form a mixture of distorted corner and edge-sharing OBa2Dy3 square pyramids. In the third O site, O(3) is bonded to two equivalent Ba(1), one Dy(2), and two equivalent Dy(1) atoms to form a mixture of distorted corner and edge-sharing OBa2Dy3 trigonal bipyramids. In the fourth O site, O(4) is bonded to two equivalent Ba(1) and three equivalent Dy(2) atoms to form a mixture of distorted corner and edge-sharing OBa2Dy3 trigonal bipyramids.