Materials Data on Hf5Al3 by Materials Project
Hf5Al3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Hf sites. In the first Hf site, Hf is bonded in a 5-coordinate geometry to five equivalent Al atoms. There are a spread of Hf–Al bond distances ranging from 2.81–3.13 Å. In the second Hf site, Hf is bonded in a 6-coordinate geometry to two equivalent Hf and six equivalent Al atoms. Both Hf–Hf bond lengths are 2.85 Å. All Hf–Al bond lengths are 2.87 Å. Al is bonded in a 9-coordinate geometry to nine Hf atoms.
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