Tl3In is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Tl(1) is bonded to eight equivalent Tl(1) and four equivalent In(1) atoms to form TlTl8In4 cuboctahedra that share corners with twelve equivalent Tl(1)Tl8In4 cuboctahedra, edges with eight equivalent In(1)Tl12 cuboctahedra, edges with sixteen equivalent Tl(1)Tl8In4 cuboctahedra, faces with four equivalent In(1)Tl12 cuboctahedra, and faces with fourteen equivalent Tl(1)Tl8In4 cuboctahedra. In(1) is bonded to twelve equivalent Tl(1) atoms to form InTl12 cuboctahedra that share corners with twelve equivalent In(1)Tl12 cuboctahedra, edges with twenty-four equivalent Tl(1)Tl8In4 cuboctahedra, faces with six equivalent In(1)Tl12 cuboctahedra, and faces with twelve equivalent Tl(1)Tl8In4 cuboctahedra.
Tl3In is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Tl(1) is bonded to eight equivalent Tl(1) and four equivalent In(1) atoms to form TlTl8In4 cuboctahedra that share corners with twelve equivalent Tl(1)Tl8In4 cuboctahedra, edges with eight equivalent In(1)Tl12 cuboctahedra, edges with sixteen equivalent Tl(1)Tl8In4 cuboctahedra, faces with four equivalent In(1)Tl12 cuboctahedra, and faces with fourteen equivalent Tl(1)Tl8In4 cuboctahedra. All Tl(1)-Tl(1) bond lengths are 3.47 Å. All Tl(1)-In(1) bond lengths are 3.47 Å. In(1) is bonded to twelve equivalent Tl(1) atoms to form InTl12 cuboctahedra that share corners with twelve equivalent In(1)Tl12 cuboctahedra, edges with twenty-four equivalent Tl(1)Tl8In4 cuboctahedra, faces with six equivalent In(1)Tl12 cuboctahedra, and faces with twelve equivalent Tl(1)Tl8In4 cuboctahedra.