Materials Data on K2SrIn7 by Materials Project
K2SrIn7 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. K is bonded in a 6-coordinate geometry to eleven In atoms. There are a spread of K–In bond distances ranging from 3.57–4.01 Å. Sr is bonded in a 7-coordinate geometry to fifteen In atoms. There are a spread of Sr–In bond distances ranging from 3.55–3.94 Å. There are four inequivalent In sites. In the first In site, In is bonded in a 10-coordinate geometry to four equivalent K, two equivalent Sr, and four In atoms. There are a spread of In–In bond distances ranging from 2.99–3.16 Å. In the second In site, In is bonded in a 10-coordinate geometry to five equivalent K, one Sr, and four In atoms. There are one shorter (3.04 Å) and one longer (3.05 Å) In–In bond lengths. In the third In site, In is bonded in a 9-coordinate geometry to three equivalent Sr and six In atoms. All In–In bond lengths are 3.20 Å. In the fourth In site, In is bonded in a 10-coordinate geometry to two equivalent K, three equivalent Sr, and five In atoms. The In–In bond length is 3.04 Å.