Mg6CeMo crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 11-coordinate geometry to one Mg(2), two equivalent Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Ce(1), and two equivalent Mo(1) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(3), and two equivalent Ce(1) atoms. In the third Mg site, Mg(3) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Ce(1), and two equivalent Mo(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Mo(1) atoms. Ce(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Mo(1) atoms. Mo(1) is bonded in a 2-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Ce(1) atoms.
Mg6CeMo crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 11-coordinate geometry to one Mg(2), two equivalent Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Ce(1), and two equivalent Mo(1) atoms. The Mg(1)-Mg(2) bond length is 3.18 Å. There is one shorter (3.14 Å) and one longer (3.27 Å) Mg(1)-Mg(1) bond length. Both Mg(1)-Mg(3) bond lengths are 2.93 Å. Both Mg(1)-Mg(4) bond lengths are 3.13 Å. There is one shorter (3.06 Å) and one longer (3.62 Å) Mg(1)-Ce(1) bond length. Both Mg(1)-Mo(1) bond lengths are 3.23 Å. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(3), and two equivalent Ce(1) atoms. Both Mg(2)-Mg(4) bond lengths are 3.04 Å. All Mg(2)-Mg(3) bond lengths are 3.05 Å. Both Mg(2)-Ce(1) bond lengths are 3.24 Å. In the third Mg site, Mg(3) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Ce(1), and two equivalent Mo(1) atoms. There is one shorter (3.16 Å) and one longer (3.25 Å) Mg(3)-Mg(3) bond length. There is one shorter (3.33 Å) and one longer (3.34 Å) Mg(3)-Mg(4) bond length. Both Mg(3)-Ce(1) bond lengths are 3.27 Å. There is one shorter (3.10 Å) and one longer (3.58 Å) Mg(3)-Mo(1) bond length. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Mo(1) atoms. Both Mg(4)-Mo(1) bond lengths are 3.22 Å. Ce(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Mo(1) atoms. Both Ce(1)-Mo(1) bond lengths are 2.63 Å. Mo(1) is bonded in a 2-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Ce(1) atoms.