Sr3Th is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted body-centered cubic geometry to four equivalent Sr(2) and four equivalent Th(1) atoms. In the second Sr site, Sr(2) is bonded in a 14-coordinate geometry to eight equivalent Sr(1) and six equivalent Th(1) atoms. Th(1) is bonded in a distorted body-centered cubic geometry to six equivalent Sr(2) and eight equivalent Sr(1) atoms.
Sr3Th is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted body-centered cubic geometry to four equivalent Sr(2) and four equivalent Th(1) atoms. All Sr(1)-Sr(2) bond lengths are 3.88 Å. All Sr(1)-Th(1) bond lengths are 3.88 Å. In the second Sr site, Sr(2) is bonded in a 14-coordinate geometry to eight equivalent Sr(1) and six equivalent Th(1) atoms. All Sr(2)-Th(1) bond lengths are 4.48 Å. Th(1) is bonded in a distorted body-centered cubic geometry to six equivalent Sr(2) and eight equivalent Sr(1) atoms.