Materials Data on Ho2Au by Materials Project
Ho2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 3-coordinate geometry to five equivalent Au atoms. There are a spread of Ho–Au bond distances ranging from 2.94–3.63 Å. In the second Ho site, Ho is bonded to four equivalent Au atoms to form a mixture of edge and corner-sharing HoAu4 tetrahedra. There are a spread of Ho–Au bond distances ranging from 2.89–3.05 Å. Au is bonded in a 9-coordinate geometry to nine Ho atoms.
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