Nd(Mg10Ni)2 crystallizes in the cubic Fd-3m space group. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Mg(2), three equivalent Mg(3), five equivalent Mg(1), one Nd(1), and one Ni(1) atom. In the second Mg site, Mg(2) is bonded in a 14-coordinate geometry to twelve equivalent Mg(1) and two equivalent Nd(1) atoms. In the third Mg site, Mg(3) is bonded in a distorted linear geometry to six equivalent Mg(1) and two equivalent Ni(1) atoms. Nd(1) is bonded in a 16-coordinate geometry to four equivalent Mg(2) and twelve equivalent Mg(1) atoms. Ni(1) is bonded to six equivalent Mg(1) and six equivalent Mg(3) atoms to form corner-sharing NiMg12 cuboctahedra.
Nd(Mg10Ni)2 crystallizes in the cubic Fd-3m space group. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Mg(2), three equivalent Mg(3), five equivalent Mg(1), one Nd(1), and one Ni(1) atom. Both Mg(1)-Mg(2) bond lengths are 3.41 Å. There is one shorter (3.00 Å) and two longer (3.11 Å) Mg(1)-Mg(3) bond lengths. There are a spread of Mg(1)-Mg(1) bond distances ranging from 2.98-3.13 Å. The Mg(1)-Nd(1) bond length is 3.56 Å. The Mg(1)-Ni(1) bond length is 3.01 Å. In the second Mg site, Mg(2) is bonded in a 14-coordinate geometry to twelve equivalent Mg(1) and two equivalent Nd(1) atoms. Both Mg(2)-Nd(1) bond lengths are 3.43 Å. In the third Mg site, Mg(3) is bonded in a distorted linear geometry to six equivalent Mg(1) and two equivalent Ni(1) atoms. Both Mg(3)-Ni(1) bond lengths are 2.80 Å. Nd(1) is bonded in a 16-coordinate geometry to four equivalent Mg(2) and twelve equivalent Mg(1) atoms. Ni(1) is bonded to six equivalent Mg(1) and six equivalent Mg(3) atoms to form corner-sharing NiMg12 cuboctahedra.