Mn3Al is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(2) and four equivalent Al(1) atoms. In the second Mn site, Mn(2) is bonded in a distorted body-centered cubic geometry to eight equivalent Mn(1) and six equivalent Al(1) atoms. Al(1) is bonded in a distorted body-centered cubic geometry to six equivalent Mn(2) and eight equivalent Mn(1) atoms.
Mn3Al is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(2) and four equivalent Al(1) atoms. All Mn(1)-Mn(2) bond lengths are 2.48 Å. All Mn(1)-Al(1) bond lengths are 2.48 Å. In the second Mn site, Mn(2) is bonded in a distorted body-centered cubic geometry to eight equivalent Mn(1) and six equivalent Al(1) atoms. All Mn(2)-Al(1) bond lengths are 2.86 Å. Al(1) is bonded in a distorted body-centered cubic geometry to six equivalent Mn(2) and eight equivalent Mn(1) atoms.