Materials Data on La2Au by Materials Project
La2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded to four equivalent Au atoms to form a mixture of distorted corner and edge-sharing LaAu4 tetrahedra. There are a spread of La–Au bond distances ranging from 3.08–3.22 Å. In the second La site, La is bonded in a 3-coordinate geometry to five equivalent Au atoms. There are a spread of La–Au bond distances ranging from 3.25–3.79 Å. Au is bonded in a 9-coordinate geometry to nine La atoms.
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