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TmAg is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tm is bonded in a body-centered cubic geometry to eight equivalent Ag atoms. All Tm–Ag bond lengths are 3.11 Å. Ag is bonded in a body-centered cubic geometry to eight equivalent Tm atoms.
TmAg2 is Titanium Disilicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Tm is bonded in a distorted q6 geometry to ten equivalent Ag atoms. There are two shorter (3.04 Å) and eight longer (3.05 Å) Tm–Ag bond lengths. Ag is bonded in a 10-coordinate geometry to five equivalent Tm atoms.
TmAg3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tm is bonded to twelve equivalent Ag atoms to form TmAg12 cuboctahedra that share corners with twelve equivalent TmAg12 cuboctahedra, edges with twenty-four equivalent AgTm4Ag8 cuboctahedra, faces with six equivalent TmAg12 cuboctahedra, and faces with twelve equivalent AgTm4Ag8 cuboctahedra. All Tm–Ag bond lengths are 3.09 Å. Ag is bonded to four equivalent Tm and eight equivalent Ag atoms to form distorted AgTm4Ag8 cuboctahedra that share corners with twelve equivalent AgTm4Ag8 cuboctahedra, edges with eight equivalent TmAg12 cuboctahedra, edges with sixteen equivalent AgTm4Ag8 cuboctahedra, faces with four equivalent TmAg12 cuboctahedra, and faces with fourteen equivalent AgTm4Ag8 cuboctahedra. All Ag–Ag bond lengths are 3.09 Å.