Materials Data on Sr11In7 by Materials Project
Sr11In7 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are four inequivalent Sr sites. In the first Sr site, Sr is bonded in a distorted square co-planar geometry to one Sr and four In atoms. The Sr–Sr bond length is 4.22 Å. There are two shorter (3.43 Å) and two longer (3.62 Å) Sr–In bond lengths. In the second Sr site, Sr is bonded in a 6-coordinate geometry to six In atoms. There are three shorter (3.58 Å) and three longer (3.63 Å) Sr–In bond lengths. In the third Sr site, Sr is bonded in a distorted octahedral geometry to six equivalent In atoms. All Sr–In bond lengths are 3.90 Å. In the fourth Sr site, Sr is bonded in a cuboctahedral geometry to twelve equivalent Sr atoms. There are two inequivalent In sites. In the first In site, In is bonded in a 9-coordinate geometry to nine Sr atoms. In the second In site, In is bonded in a 9-coordinate geometry to six Sr and three equivalent In atoms. All In–In bond lengths are 3.07 Å.