Materials Data on HfTl by Materials Project
HfTl crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Hf is bonded to six equivalent Hf and six equivalent Tl atoms to form HfHf6Tl6 cuboctahedra that share corners with eighteen equivalent HfHf6Tl6 cuboctahedra, edges with six equivalent HfHf6Tl6 cuboctahedra, edges with twelve equivalent TlHf6Tl6 cuboctahedra, faces with eight equivalent HfHf6Tl6 cuboctahedra, and faces with twelve equivalent TlHf6Tl6 cuboctahedra. All Hf–Hf bond lengths are 3.23 Å. All Hf–Tl bond lengths are 3.20 Å. Tl is bonded to six equivalent Hf and six equivalent Tl atoms to form TlHf6Tl6 cuboctahedra that share corners with eighteen equivalent TlHf6Tl6 cuboctahedra, edges with six equivalent TlHf6Tl6 cuboctahedra, edges with twelve equivalent HfHf6Tl6 cuboctahedra, faces with eight equivalent TlHf6Tl6 cuboctahedra, and faces with twelve equivalent HfHf6Tl6 cuboctahedra. All Tl–Tl bond lengths are 3.23 Å.