Sr2Al crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 4-coordinate geometry to four equivalent Al(1) atoms. In the second Sr site, Sr(2) is bonded in a distorted see-saw-like geometry to four equivalent Al(1) atoms. Al(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Sr(2) atoms.
Sr2Al crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 4-coordinate geometry to four equivalent Al(1) atoms. There are a spread of Sr(1)-Al(1) bond distances ranging from 3.40-3.72 Å. In the second Sr site, Sr(2) is bonded in a distorted see-saw-like geometry to four equivalent Al(1) atoms. There are a spread of Sr(2)-Al(1) bond distances ranging from 3.41-3.51 Å. Al(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Sr(2) atoms.