LaAuAl3 crystallizes in the tetragonal I4mm space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Au(1), four equivalent Al(1), and eight equivalent Al(2) atoms. Au(1) is bonded in a 5-coordinate geometry to four equivalent La(1), one Al(1), and four equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted single-bond geometry to four equivalent La(1) and one Au(1) atom. In the second Al site, Al(2) is bonded in a distorted bent 120 degrees geometry to four equivalent La(1) and two equivalent Au(1) atoms.
LaAuAl3 crystallizes in the tetragonal I4mm space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Au(1), four equivalent Al(1), and eight equivalent Al(2) atoms. All La(1)-Au(1) bond lengths are 3.44 Å. All La(1)-Al(1) bond lengths are 3.24 Å. There are four shorter (3.40 Å) and four longer (3.59 Å) La(1)-Al(2) bond lengths. Au(1) is bonded in a 5-coordinate geometry to four equivalent La(1), one Al(1), and four equivalent Al(2) atoms. The Au(1)-Al(1) bond length is 2.51 Å. All Au(1)-Al(2) bond lengths are 2.56 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted single-bond geometry to four equivalent La(1) and one Au(1) atom. In the second Al site, Al(2) is bonded in a distorted bent 120 degrees geometry to four equivalent La(1) and two equivalent Au(1) atoms.