Sr11In7 crystallizes in the cubic Fm-3m space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted square co-planar geometry to one Sr(4), two equivalent In(1), and two equivalent In(2) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to three equivalent In(1) and three equivalent In(2) atoms. In the third Sr site, Sr(3) is bonded in a distorted octahedral geometry to six equivalent In(1) atoms. In the fourth Sr site, Sr(4) is bonded in a cuboctahedral geometry to twelve equivalent Sr(1) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 9-coordinate geometry to one Sr(3), four equivalent Sr(1), and four equivalent Sr(2) atoms. In the second In site, In(2) is bonded in a 9-coordinate geometry to three equivalent Sr(1), three equivalent Sr(2), and three equivalent In(2) atoms.
Sr11In7 crystallizes in the cubic Fm-3m space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted square co-planar geometry to one Sr(4), two equivalent In(1), and two equivalent In(2) atoms. The Sr(1)-Sr(4) bond length is 4.23 Å. Both Sr(1)-In(1) bond lengths are 3.61 Å. Both Sr(1)-In(2) bond lengths are 3.44 Å. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to three equivalent In(1) and three equivalent In(2) atoms. All Sr(2)-In(1) bond lengths are 3.63 Å. All Sr(2)-In(2) bond lengths are 3.56 Å. In the third Sr site, Sr(3) is bonded in a distorted octahedral geometry to six equivalent In(1) atoms. All Sr(3)-In(1) bond lengths are 3.91 Å. In the fourth Sr site, Sr(4) is bonded in a cuboctahedral geometry to twelve equivalent Sr(1) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 9-coordinate geometry to one Sr(3), four equivalent Sr(1), and four equivalent Sr(2) atoms. In the second In site, In(2) is bonded in a 9-coordinate geometry to three equivalent Sr(1), three equivalent Sr(2), and three equivalent In(2) atoms. All In(2)-In(2) bond lengths are 3.02 Å.