Materials Data on Al3Au by Materials Project
AuAl3 is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Au is bonded to twelve Al atoms to form a mixture of corner, edge, and face-sharing AuAl12 cuboctahedra. There are four shorter (2.86 Å) and eight longer (2.87 Å) Au–Al bond lengths. There are two inequivalent Al sites. In the first Al site, Al is bonded to four equivalent Au atoms to form a mixture of distorted corner and edge-sharing AlAu4 cuboctahedra. In the second Al site, Al is bonded in a distorted square co-planar geometry to four equivalent Au atoms.
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