ScSn3 is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. Sc(1) is bonded to four equivalent Sn(2) and eight equivalent Sn(1) atoms to form ScSn12 cuboctahedra that share corners with four equivalent Sc(1)Sn12 cuboctahedra, edges with eight equivalent Sc(1)Sn12 cuboctahedra, edges with sixteen equivalent Sn(1)Sc4Sn8 cuboctahedra, faces with four equivalent Sc(1)Sn12 cuboctahedra, and faces with eight equivalent Sn(1)Sc4Sn8 cuboctahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to four equivalent Sc(1), four equivalent Sn(1), and four equivalent Sn(2) atoms to form distorted SnSc4Sn8 cuboctahedra that share corners with twelve equivalent Sn(1)Sc4Sn8 cuboctahedra, edges with eight equivalent Sc(1)Sn12 cuboctahedra, edges with eight equivalent Sn(1)Sc4Sn8 cuboctahedra, faces with four equivalent Sc(1)Sn12 cuboctahedra, and faces with ten equivalent Sn(1)Sc4Sn8 cuboctahedra. In the second Sn site, Sn(2) is bonded in a square co-planar geometry to four equivalent Sc(1) and eight equivalent Sn(1) atoms.
ScSn3 is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. Sc(1) is bonded to four equivalent Sn(2) and eight equivalent Sn(1) atoms to form ScSn12 cuboctahedra that share corners with four equivalent Sc(1)Sn12 cuboctahedra, edges with eight equivalent Sc(1)Sn12 cuboctahedra, edges with sixteen equivalent Sn(1)Sc4Sn8 cuboctahedra, faces with four equivalent Sc(1)Sn12 cuboctahedra, and faces with eight equivalent Sn(1)Sc4Sn8 cuboctahedra. All Sc(1)-Sn(2) bond lengths are 3.14 Å. All Sc(1)-Sn(1) bond lengths are 3.36 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to four equivalent Sc(1), four equivalent Sn(1), and four equivalent Sn(2) atoms to form distorted SnSc4Sn8 cuboctahedra that share corners with twelve equivalent Sn(1)Sc4Sn8 cuboctahedra, edges with eight equivalent Sc(1)Sn12 cuboctahedra, edges with eight equivalent Sn(1)Sc4Sn8 cuboctahedra, faces with four equivalent Sc(1)Sn12 cuboctahedra, and faces with ten equivalent Sn(1)Sc4Sn8 cuboctahedra. All Sn(1)-Sn(1) bond lengths are 3.14 Å. All Sn(1)-Sn(2) bond lengths are 3.36 Å. In the second Sn site, Sn(2) is bonded in a square co-planar geometry to four equivalent Sc(1) and eight equivalent Sn(1) atoms.