Dy4NiMg crystallizes in the cubic F-43m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Dy(1), three equivalent Dy(2), and three equivalent Dy(3) atoms to form a mixture of face and corner-sharing MgDy9Mg3 cuboctahedra. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1), three equivalent Dy(3), and three equivalent Ni(1) atoms. In the second Dy site, Dy(2) is bonded in a bent 150 degrees geometry to two equivalent Mg(1), four equivalent Dy(3), and two equivalent Ni(1) atoms. In the third Dy site, Dy(3) is bonded in a 14-coordinate geometry to two equivalent Mg(1), two equivalent Dy(1), four equivalent Dy(2), four equivalent Dy(3), and two equivalent Ni(1) atoms. Ni(1) is bonded in a 6-coordinate geometry to three equivalent Dy(1), three equivalent Dy(2), and three equivalent Dy(3) atoms.
Dy4NiMg crystallizes in the cubic F-43m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Dy(1), three equivalent Dy(2), and three equivalent Dy(3) atoms to form a mixture of face and corner-sharing MgDy9Mg3 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.04 Å. All Mg(1)-Dy(1) bond lengths are 3.47 Å. All Mg(1)-Dy(2) bond lengths are 3.50 Å. All Mg(1)-Dy(3) bond lengths are 3.28 Å. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1), three equivalent Dy(3), and three equivalent Ni(1) atoms. All Dy(1)-Dy(3) bond lengths are 3.49 Å. All Dy(1)-Ni(1) bond lengths are 2.78 Å. In the second Dy site, Dy(2) is bonded in a bent 150 degrees geometry to two equivalent Mg(1), four equivalent Dy(3), and two equivalent Ni(1) atoms. All Dy(2)-Dy(3) bond lengths are 3.60 Å. Both Dy(2)-Ni(1) bond lengths are 2.79 Å. In the third Dy site, Dy(3) is bonded in a 14-coordinate geometry to two equivalent Mg(1), two equivalent Dy(1), four equivalent Dy(2), four equivalent Dy(3), and two equivalent Ni(1) atoms. All Dy(3)-Dy(3) bond lengths are 3.56 Å. Both Dy(3)-Ni(1) bond lengths are 3.48 Å. Ni(1) is bonded in a 6-coordinate geometry to three equivalent Dy(1), three equivalent Dy(2), and three equivalent Dy(3) atoms.