MgPr4Ru crystallizes in the cubic F-43m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Pr(1), three equivalent Pr(2), and three equivalent Pr(3) atoms to form a mixture of face and corner-sharing MgPr9Mg3 cuboctahedra. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Mg(1) and two equivalent Ru(1) atoms. In the second Pr site, Pr(2) is bonded in a bent 150 degrees geometry to two equivalent Mg(1) and two equivalent Ru(1) atoms. In the third Pr site, Pr(3) is bonded in a 3-coordinate geometry to three equivalent Mg(1) and three equivalent Ru(1) atoms. Ru(1) is bonded in a 6-coordinate geometry to three equivalent Pr(1), three equivalent Pr(2), and three equivalent Pr(3) atoms.
MgPr4Ru crystallizes in the cubic F-43m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Pr(1), three equivalent Pr(2), and three equivalent Pr(3) atoms to form a mixture of face and corner-sharing MgPr9Mg3 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.13 Å. All Mg(1)-Pr(1) bond lengths are 3.46 Å. All Mg(1)-Pr(2) bond lengths are 3.67 Å. All Mg(1)-Pr(3) bond lengths are 3.68 Å. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Mg(1) and two equivalent Ru(1) atoms. Both Pr(1)-Ru(1) bond lengths are 3.62 Å. In the second Pr site, Pr(2) is bonded in a bent 150 degrees geometry to two equivalent Mg(1) and two equivalent Ru(1) atoms. Both Pr(2)-Ru(1) bond lengths are 2.85 Å. In the third Pr site, Pr(3) is bonded in a 3-coordinate geometry to three equivalent Mg(1) and three equivalent Ru(1) atoms. All Pr(3)-Ru(1) bond lengths are 2.96 Å. Ru(1) is bonded in a 6-coordinate geometry to three equivalent Pr(1), three equivalent Pr(2), and three equivalent Pr(3) atoms.