MgDy4Ru 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 Ru(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 Ru(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 Ru(1) atoms. Ru(1) is bonded in a 6-coordinate geometry to three equivalent Dy(1), three equivalent Dy(2), and three equivalent Dy(3) atoms.
MgDy4Ru 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 3.55 Å. All Mg(1)-Dy(2) bond lengths are 3.54 Å. All Mg(1)-Dy(3) bond lengths are 3.32 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 Ru(1) atoms. All Dy(1)-Dy(3) bond lengths are 3.48 Å. All Dy(1)-Ru(1) bond lengths are 2.82 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 Ru(1) atoms. All Dy(2)-Dy(3) bond lengths are 3.62 Å. Both Dy(2)-Ru(1) bond lengths are 2.76 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 Ru(1) atoms. All Dy(3)-Dy(3) bond lengths are 3.64 Å. Both Dy(3)-Ru(1) bond lengths are 3.48 Å. Ru(1) is bonded in a 6-coordinate geometry to three equivalent Dy(1), three equivalent Dy(2), and three equivalent Dy(3) atoms.