Tb2Au2Sn crystallizes in the tetragonal P4/mbm space group. Tb(1) is bonded in a 6-coordinate geometry to six equivalent Au(1) and four equivalent Sn(1) atoms. Au(1) is bonded in a 9-coordinate geometry to six equivalent Tb(1), one Au(1), and two equivalent Sn(1) atoms. Sn(1) is bonded to eight equivalent Tb(1) and four equivalent Au(1) atoms to form a mixture of face and corner-sharing SnTb8Au4 cuboctahedra.
Tb2Au2Sn crystallizes in the tetragonal P4/mbm space group. Tb(1) is bonded in a 6-coordinate geometry to six equivalent Au(1) and four equivalent Sn(1) atoms. There are two shorter (2.95 Å) and four longer (3.03 Å) Tb(1)-Au(1) bond lengths. All Tb(1)-Sn(1) bond lengths are 3.49 Å. Au(1) is bonded in a 9-coordinate geometry to six equivalent Tb(1), one Au(1), and two equivalent Sn(1) atoms. The Au(1)-Au(1) bond length is 2.84 Å. Both Au(1)-Sn(1) bond lengths are 3.12 Å. Sn(1) is bonded to eight equivalent Tb(1) and four equivalent Au(1) atoms to form a mixture of face and corner-sharing SnTb8Au4 cuboctahedra.