MgCeRh crystallizes in the hexagonal P-6 space group. Mg(1) is bonded in a 4-coordinate geometry to one Rh(1), one Rh(2), and two equivalent Rh(3) atoms. Ce(1) is bonded in a 5-coordinate geometry to one Rh(3), two equivalent Rh(1), and two equivalent Rh(2) atoms. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ce(1) atoms. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ce(1) atoms. In the third Rh site, Rh(3) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Ce(1) atoms.
MgCeRh crystallizes in the hexagonal P-6 space group. Mg(1) is bonded in a 4-coordinate geometry to one Rh(1), one Rh(2), and two equivalent Rh(3) atoms. The Mg(1)-Rh(1) bond length is 2.90 Å. The Mg(1)-Rh(2) bond length is 2.90 Å. Both Mg(1)-Rh(3) bond lengths are 2.70 Å. Ce(1) is bonded in a 5-coordinate geometry to one Rh(3), two equivalent Rh(1), and two equivalent Rh(2) atoms. The Ce(1)-Rh(3) bond length is 3.09 Å. Both Ce(1)-Rh(1) bond lengths are 3.03 Å. Both Ce(1)-Rh(2) bond lengths are 3.03 Å. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ce(1) atoms. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ce(1) atoms. In the third Rh site, Rh(3) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Ce(1) atoms.