SmCu4In crystallizes in the cubic F-43m space group. Sm(1) is bonded in a 16-coordinate geometry to twelve equivalent Cu(1) and four equivalent In(1) atoms. Cu(1) is bonded to three equivalent Sm(1), six equivalent Cu(1), and three equivalent In(1) atoms to form a mixture of face, corner, and edge-sharing CuSm3In3Cu6 cuboctahedra. In(1) is bonded in a 16-coordinate geometry to four equivalent Sm(1) and twelve equivalent Cu(1) atoms.
SmCu4In crystallizes in the cubic F-43m space group. Sm(1) is bonded in a 16-coordinate geometry to twelve equivalent Cu(1) and four equivalent In(1) atoms. All Sm(1)-Cu(1) bond lengths are 3.00 Å. All Sm(1)-In(1) bond lengths are 3.13 Å. Cu(1) is bonded to three equivalent Sm(1), six equivalent Cu(1), and three equivalent In(1) atoms to form a mixture of face, corner, and edge-sharing CuSm3In3Cu6 cuboctahedra. There are three shorter (2.54 Å) and three longer (2.57 Å) Cu(1)-Cu(1) bond lengths. All Cu(1)-In(1) bond lengths are 3.00 Å. In(1) is bonded in a 16-coordinate geometry to four equivalent Sm(1) and twelve equivalent Cu(1) atoms.