Sm4Sb3 crystallizes in the cubic I-43d space group. Sm(1) is bonded in a 6-coordinate geometry to six equivalent Sb(1) atoms. Sb(1) is bonded to eight equivalent Sm(1) atoms to form a mixture of distorted corner, edge, and face-sharing SbSm8 hexagonal bipyramids.
Sm4Sb3 crystallizes in the cubic I-43d space group. Sm(1) is bonded in a 6-coordinate geometry to six equivalent Sb(1) atoms. There are three shorter (3.12 Å) and three longer (3.38 Å) Sm(1)-Sb(1) bond lengths. Sb(1) is bonded to eight equivalent Sm(1) atoms to form a mixture of distorted corner, edge, and face-sharing SbSm8 hexagonal bipyramids.