UTl3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. U(1) is bonded to twelve equivalent Tl(1) atoms to form UTl12 cuboctahedra that share corners with twelve equivalent U(1)Tl12 cuboctahedra, edges with twenty-four equivalent Tl(1)U4Tl8 cuboctahedra, faces with six equivalent U(1)Tl12 cuboctahedra, and faces with twelve equivalent Tl(1)U4Tl8 cuboctahedra. Tl(1) is bonded to four equivalent U(1) and eight equivalent Tl(1) atoms to form TlU4Tl8 cuboctahedra that share corners with twelve equivalent Tl(1)U4Tl8 cuboctahedra, edges with eight equivalent U(1)Tl12 cuboctahedra, edges with sixteen equivalent Tl(1)U4Tl8 cuboctahedra, faces with four equivalent U(1)Tl12 cuboctahedra, and faces with fourteen equivalent Tl(1)U4Tl8 cuboctahedra.
UTl3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. U(1) is bonded to twelve equivalent Tl(1) atoms to form UTl12 cuboctahedra that share corners with twelve equivalent U(1)Tl12 cuboctahedra, edges with twenty-four equivalent Tl(1)U4Tl8 cuboctahedra, faces with six equivalent U(1)Tl12 cuboctahedra, and faces with twelve equivalent Tl(1)U4Tl8 cuboctahedra. All U(1)-Tl(1) bond lengths are 3.37 Å. Tl(1) is bonded to four equivalent U(1) and eight equivalent Tl(1) atoms to form TlU4Tl8 cuboctahedra that share corners with twelve equivalent Tl(1)U4Tl8 cuboctahedra, edges with eight equivalent U(1)Tl12 cuboctahedra, edges with sixteen equivalent Tl(1)U4Tl8 cuboctahedra, faces with four equivalent U(1)Tl12 cuboctahedra, and faces with fourteen equivalent Tl(1)U4Tl8 cuboctahedra. All Tl(1)-Tl(1) bond lengths are 3.37 Å.