Materials Data on K17In41 by Materials Project

Abstract

K17In41 is gamma-brass-like structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. there are three inequivalent K sites. In the first K site, K is bonded in a 3-coordinate geometry to three equivalent K and twelve In atoms. All K–K bond lengths are 4.04 Å. There are a spread of K–In bond distances ranging from 3.49–3.80 Å. In the second K site, K is bonded in a 6-coordinate geometry to four K and twelve In atoms. There are two shorter (3.68 Å) and one longer (4.30 Å) K–K bond lengths. There are a spread of K–In bond distances ranging from 3.72–4.17 Å. In the third K site, K is bonded in a 12-coordinate geometry to twelve equivalent In atoms. All K–In bond lengths are 3.58 Å. There are five inequivalent In sites. In the first In site, In is bonded in a distorted q6 geometry to five K and six In atoms. There are a spread of In–In bond distances ranging from 2.96–3.15 Å. In the second In site, In is bonded in a 11-coordinate geometry to five K and six In atoms. There are a spread of In–In bond distances ranging from 3.07–3.47 Å. In the third In site, In is bonded in a 11-coordinate geometry to five K and six In atoms. Both In–In bond lengths are 3.24 Å. In the fourth In site, In is bonded in a tetrahedral geometry to four equivalent In atoms. All In–In bond lengths are 3.43 Å. In the fifth In site, In is bonded in a 4-coordinate geometry to six equivalent K and seven In atoms.