Materials Data on SrAl2Au3 by Materials Project
SrAu3Al2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Sr is bonded in a 10-coordinate geometry to ten Au atoms. There are a spread of Sr–Au bond distances ranging from 3.35–3.83 Å. There are three inequivalent Au sites. In the first Au site, Au is bonded in a 11-coordinate geometry to three equivalent Sr and four equivalent Al atoms. There are two shorter (2.64 Å) and two longer (2.65 Å) Au–Al bond lengths. In the second Au site, Au is bonded in a 11-coordinate geometry to four equivalent Sr and four equivalent Al atoms. There are two shorter (2.57 Å) and two longer (2.86 Å) Au–Al bond lengths. In the third Au site, Au is bonded in a 7-coordinate geometry to three equivalent Sr and four equivalent Al atoms. There are two shorter (2.55 Å) and two longer (2.89 Å) Au–Al bond lengths. Al is bonded in a 6-coordinate geometry to six Au atoms.