Na3Tl is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Na(1) is bonded to eight equivalent Na(1) and four equivalent Tl(1) atoms to form distorted NaNa8Tl4 cuboctahedra that share corners with twelve equivalent Na(1)Na8Tl4 cuboctahedra, edges with eight equivalent Tl(1)Na12 cuboctahedra, edges with sixteen equivalent Na(1)Na8Tl4 cuboctahedra, faces with four equivalent Tl(1)Na12 cuboctahedra, and faces with fourteen equivalent Na(1)Na8Tl4 cuboctahedra. Tl(1) is bonded to twelve equivalent Na(1) atoms to form TlNa12 cuboctahedra that share corners with twelve equivalent Tl(1)Na12 cuboctahedra, edges with twenty-four equivalent Na(1)Na8Tl4 cuboctahedra, faces with six equivalent Tl(1)Na12 cuboctahedra, and faces with twelve equivalent Na(1)Na8Tl4 cuboctahedra.
Na3Tl is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Na(1) is bonded to eight equivalent Na(1) and four equivalent Tl(1) atoms to form distorted NaNa8Tl4 cuboctahedra that share corners with twelve equivalent Na(1)Na8Tl4 cuboctahedra, edges with eight equivalent Tl(1)Na12 cuboctahedra, edges with sixteen equivalent Na(1)Na8Tl4 cuboctahedra, faces with four equivalent Tl(1)Na12 cuboctahedra, and faces with fourteen equivalent Na(1)Na8Tl4 cuboctahedra. All Na(1)-Na(1) bond lengths are 3.47 Å. All Na(1)-Tl(1) bond lengths are 3.47 Å. Tl(1) is bonded to twelve equivalent Na(1) atoms to form TlNa12 cuboctahedra that share corners with twelve equivalent Tl(1)Na12 cuboctahedra, edges with twenty-four equivalent Na(1)Na8Tl4 cuboctahedra, faces with six equivalent Tl(1)Na12 cuboctahedra, and faces with twelve equivalent Na(1)Na8Tl4 cuboctahedra.