SrAu2Si2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 16-coordinate geometry to eight equivalent Au(1) and eight equivalent Si(1) atoms. Au(1) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), four equivalent Au(1), and one Si(1) atom.
SrAu2Si2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 16-coordinate geometry to eight equivalent Au(1) and eight equivalent Si(1) atoms. All Sr(1)-Au(1) bond lengths are 3.36 Å. All Sr(1)-Si(1) bond lengths are 3.35 Å. Au(1) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and four equivalent Si(1) atoms. All Au(1)-Si(1) bond lengths are 2.59 Å. Si(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), four equivalent Au(1), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.38 Å.