SmCo2Ni3 crystallizes in the hexagonal P6/mmm space group. Sm(1) is bonded in a 18-coordinate geometry to six equivalent Co(1) and twelve equivalent Ni(1) atoms. Co(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1) and six equivalent Ni(1) atoms. Ni(1) is bonded to four equivalent Sm(1), four equivalent Co(1), and four equivalent Ni(1) atoms to form a mixture of face, corner, and edge-sharing NiSm4Co4Ni4 cuboctahedra.
SmCo2Ni3 crystallizes in the hexagonal P6/mmm space group. Sm(1) is bonded in a 18-coordinate geometry to six equivalent Co(1) and twelve equivalent Ni(1) atoms. All Sm(1)-Co(1) bond lengths are 2.83 Å. All Sm(1)-Ni(1) bond lengths are 3.16 Å. Co(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1) and six equivalent Ni(1) atoms. All Co(1)-Ni(1) bond lengths are 2.44 Å. Ni(1) is bonded to four equivalent Sm(1), four equivalent Co(1), and four equivalent Ni(1) atoms to form a mixture of face, corner, and edge-sharing NiSm4Co4Ni4 cuboctahedra. All Ni(1)-Ni(1) bond lengths are 2.45 Å.