SmCd3 crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to twelve Cd(1,1) atoms to form a mixture of corner and face-sharing SmCd12 cuboctahedra. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 12-coordinate geometry to four equivalent Sm(1) and eight Cd(1,1) atoms. In the second Cd site, Cd(1) is bonded in a 12-coordinate geometry to four equivalent Sm(1) and eight equivalent Cd(1) atoms.
SmCd3 crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to twelve Cd(1,1) atoms to form a mixture of corner and face-sharing SmCd12 cuboctahedra. There are six shorter (3.20 Å) and six longer (3.35 Å) Sm(1)-Cd(1,1) bond lengths. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 12-coordinate geometry to four equivalent Sm(1) and eight Cd(1,1) atoms. There are a spread of Cd(1)-Cd(1,1) bond distances ranging from 3.09-3.50 Å. In the second Cd site, Cd(1) is bonded in a 12-coordinate geometry to four equivalent Sm(1) and eight equivalent Cd(1) atoms.