Sm3(Ni3Ga)2 crystallizes in the cubic Im-3m space group. Sm(1) is bonded in a 12-coordinate geometry to eight equivalent Ni(1) and four equivalent Ga(1) atoms. Ni(1) is bonded in a 12-coordinate geometry to four equivalent Sm(1), six equivalent Ni(1), and two equivalent Ga(1) atoms. Ga(1) is bonded to six equivalent Sm(1) and six equivalent Ni(1) atoms to form a mixture of corner and face-sharing GaSm6Ni6 cuboctahedra.
Sm3(Ni3Ga)2 crystallizes in the cubic Im-3m space group. Sm(1) is bonded in a 12-coordinate geometry to eight equivalent Ni(1) and four equivalent Ga(1) atoms. There are four shorter (2.79 Å) and four longer (3.02 Å) Sm(1)-Ni(1) bond lengths. All Sm(1)-Ga(1) bond lengths are 3.18 Å. Ni(1) is bonded in a 12-coordinate geometry to four equivalent Sm(1), six equivalent Ni(1), and two equivalent Ga(1) atoms. There are four shorter (2.58 Å) and two longer (2.94 Å) Ni(1)-Ni(1) bond lengths. Both Ni(1)-Ga(1) bond lengths are 2.48 Å. Ga(1) is bonded to six equivalent Sm(1) and six equivalent Ni(1) atoms to form a mixture of corner and face-sharing GaSm6Ni6 cuboctahedra.