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TbAg is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tb is bonded in a body-centered cubic geometry to eight equivalent Ag atoms. All Tb–Ag bond lengths are 3.17 Å. Ag is bonded in a body-centered cubic geometry to eight equivalent Tb atoms.
Ag3Tb is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Tb is bonded to twelve Ag atoms to form TbAg12 cuboctahedra that share corners with four equivalent TbAg12 cuboctahedra, corners with eight equivalent AgTb4Ag8 cuboctahedra, edges with eight equivalent TbAg12 cuboctahedra, faces with four equivalent TbAg12 cuboctahedra, and faces with six equivalent AgTb4Ag8 cuboctahedra. There are eight shorter (3.04 Å) and four longer (3.21 Å) Tb–Ag bond lengths. There are two inequivalent Ag sites. In the first Ag site, Ag is bonded in a 12-coordinate geometry to four equivalent Tb and four equivalent Ag atoms. All Ag–Ag bond lengths are 3.04 Å. In the second Ag site, Ag is bonded to four equivalent Tb and eight equivalent Ag atoms to form AgTb4Ag8 cuboctahedra that share corners with four equivalent AgTb4Ag8 cuboctahedra, corners with eight equivalent TbAg12 cuboctahedra, edges with eight equivalent AgTb4Ag8 cuboctahedra, faces with four equivalent AgTb4Ag8 cuboctahedra, and faces with six equivalent TbAg12 cuboctahedra.
Ag3Tb is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Tb is bonded to twelve equivalent Ag atoms to form a mixture of face and corner-sharing TbAg12 cuboctahedra. There are six shorter (3.12 Å) and six longer (3.17 Å) Tb–Ag bond lengths. Ag is bonded in a 4-coordinate geometry to four equivalent Tb atoms.
Tb3Ag is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tb is bonded in a distorted square co-planar geometry to four equivalent Ag atoms. All Tb–Ag bond lengths are 3.39 Å. Ag is bonded to twelve equivalent Tb atoms to form a mixture of corner and face-sharing AgTb12 cuboctahedra.