Materials Data on Sc2Au by Materials Project
Sc2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Sc sites. In the first Sc site, Sc is bonded to four equivalent Au atoms to form a mixture of corner and edge-sharing ScAu4 tetrahedra. There are a spread of Sc–Au bond distances ranging from 2.72–2.86 Å. In the second Sc site, Sc is bonded in a 5-coordinate geometry to five equivalent Au atoms. There are a spread of Sc–Au bond distances ranging from 2.81–3.35 Å. Au is bonded in a 9-coordinate geometry to nine Sc atoms.
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