Rh3Sn is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Rh(1) is bonded to eight equivalent Rh(1) and four equivalent Sn(1) atoms to form distorted RhSn4Rh8 cuboctahedra that share corners with four equivalent Sn(1)Rh12 cuboctahedra, corners with fourteen equivalent Rh(1)Sn4Rh8 cuboctahedra, edges with six equivalent Sn(1)Rh12 cuboctahedra, edges with twelve equivalent Rh(1)Sn4Rh8 cuboctahedra, faces with four equivalent Sn(1)Rh12 cuboctahedra, and faces with sixteen equivalent Rh(1)Sn4Rh8 cuboctahedra. Sn(1) is bonded to twelve equivalent Rh(1) atoms to form SnRh12 cuboctahedra that share corners with six equivalent Sn(1)Rh12 cuboctahedra, corners with twelve equivalent Rh(1)Sn4Rh8 cuboctahedra, edges with eighteen equivalent Rh(1)Sn4Rh8 cuboctahedra, faces with eight equivalent Sn(1)Rh12 cuboctahedra, and faces with twelve equivalent Rh(1)Sn4Rh8 cuboctahedra.
Rh3Sn is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Rh(1) is bonded to eight equivalent Rh(1) and four equivalent Sn(1) atoms to form distorted RhSn4Rh8 cuboctahedra that share corners with four equivalent Sn(1)Rh12 cuboctahedra, corners with fourteen equivalent Rh(1)Sn4Rh8 cuboctahedra, edges with six equivalent Sn(1)Rh12 cuboctahedra, edges with twelve equivalent Rh(1)Sn4Rh8 cuboctahedra, faces with four equivalent Sn(1)Rh12 cuboctahedra, and faces with sixteen equivalent Rh(1)Sn4Rh8 cuboctahedra. There are six shorter (2.74 Å) and two longer (2.86 Å) Rh(1)-Rh(1) bond lengths. There are two shorter (2.78 Å) and two longer (2.80 Å) Rh(1)-Sn(1) bond lengths. Sn(1) is bonded to twelve equivalent Rh(1) atoms to form SnRh12 cuboctahedra that share corners with six equivalent Sn(1)Rh12 cuboctahedra, corners with twelve equivalent Rh(1)Sn4Rh8 cuboctahedra, edges with eighteen equivalent Rh(1)Sn4Rh8 cuboctahedra, faces with eight equivalent Sn(1)Rh12 cuboctahedra, and faces with twelve equivalent Rh(1)Sn4Rh8 cuboctahedra.