MgDy4Rh 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 corner and face-sharing MgDy9Mg3 cuboctahedra. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 14-coordinate geometry to two equivalent Mg(1), two equivalent Dy(2), four equivalent Dy(1), four equivalent Dy(3), and two equivalent Rh(1) atoms. In the second Dy site, Dy(2) is bonded in a 3-coordinate geometry to three equivalent Mg(1), three equivalent Dy(1), and three equivalent Rh(1) atoms. In the third Dy site, Dy(3) is bonded in a bent 150 degrees geometry to two equivalent Mg(1), four equivalent Dy(1), and two equivalent Rh(1) atoms. Rh(1) is bonded in a 6-coordinate geometry to three equivalent Dy(1), three equivalent Dy(2), and three equivalent Dy(3) atoms.
MgDy4Rh 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 corner and face-sharing MgDy9Mg3 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.06 Å. All Mg(1)-Dy(1) bond lengths are 3.31 Å. All Mg(1)-Dy(2) bond lengths are 3.49 Å. All Mg(1)-Dy(3) bond lengths are 3.54 Å. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 14-coordinate geometry to two equivalent Mg(1), two equivalent Dy(2), four equivalent Dy(1), four equivalent Dy(3), and two equivalent Rh(1) atoms. Both Dy(1)-Dy(2) bond lengths are 3.51 Å. All Dy(1)-Dy(1) bond lengths are 3.59 Å. All Dy(1)-Dy(3) bond lengths are 3.63 Å. Both Dy(1)-Rh(1) bond lengths are 3.51 Å. In the second Dy site, Dy(2) is bonded in a 3-coordinate geometry to three equivalent Mg(1), three equivalent Dy(1), and three equivalent Rh(1) atoms. All Dy(2)-Rh(1) bond lengths are 2.80 Å. In the third Dy site, Dy(3) is bonded in a bent 150 degrees geometry to two equivalent Mg(1), four equivalent Dy(1), and two equivalent Rh(1) atoms. Both Dy(3)-Rh(1) bond lengths are 2.81 Å. Rh(1) is bonded in a 6-coordinate geometry to three equivalent Dy(1), three equivalent Dy(2), and three equivalent Dy(3) atoms.