Dy2CuO4 crystallizes in the orthorhombic Cmce space group. Dy(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Dy(1) and two equivalent Cu(1) atoms. In the second O site, O(2) is bonded to four equivalent Dy(1) atoms to form a mixture of corner and edge-sharing ODy4 tetrahedra.
Dy2CuO4 crystallizes in the orthorhombic Cmce space group. Dy(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Both Dy(1)-O(1) bond lengths are 2.43 Å. There are two shorter (2.22 Å) and two longer (2.28 Å) Dy(1)-O(2) bond lengths. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Cu(1)-O(1) bond lengths are 1.97 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Dy(1) and two equivalent Cu(1) atoms. In the second O site, O(2) is bonded to four equivalent Dy(1) atoms to form a mixture of corner and edge-sharing ODy4 tetrahedra.