TbAu3 is beta Cu3Ti structured and crystallizes in the orthorhombic Pmmn space group. Tb(1) is bonded to four equivalent Au(1) and eight equivalent Au(2) atoms to form a mixture of edge, face, and corner-sharing TbAu12 cuboctahedra. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted see-saw-like geometry to four equivalent Tb(1) atoms. In the second Au site, Au(2) is bonded in a 4-coordinate geometry to four equivalent Tb(1) atoms.
TbAu3 is beta Cu3Ti structured and crystallizes in the orthorhombic Pmmn space group. Tb(1) is bonded to four equivalent Au(1) and eight equivalent Au(2) atoms to form a mixture of edge, face, and corner-sharing TbAu12 cuboctahedra. There are two shorter (3.00 Å) and two longer (3.12 Å) Tb(1)-Au(1) bond lengths. There are a spread of Tb(1)-Au(2) bond distances ranging from 2.99-3.07 Å. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted see-saw-like geometry to four equivalent Tb(1) atoms. In the second Au site, Au(2) is bonded in a 4-coordinate geometry to four equivalent Tb(1) atoms.