Materials Data on HfNi5 by Materials Project
HfNi5 crystallizes in the cubic F-43m space group. The structure is three-dimensional. Hf is bonded in a 12-coordinate geometry to sixteen Ni atoms. There are twelve shorter (2.76 Å) and four longer (2.88 Å) Hf–Ni bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded to three equivalent Hf and nine Ni atoms to form a mixture of distorted face, edge, and corner-sharing NiHf3Ni9 cuboctahedra. There are a spread of Ni–Ni bond distances ranging from 2.34–2.76 Å. In the second Ni site, Ni is bonded in a 4-coordinate geometry to four equivalent Hf and twelve equivalent Ni atoms.
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