Materials Data on Sr8Ga7 by Materials Project

Abstract

Ga7Sr8 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are four inequivalent Sr sites. In the first Sr site, Sr is bonded in a 6-coordinate geometry to six Ga atoms. There are three shorter (3.40 Å) and three longer (3.47 Å) Sr–Ga bond lengths. In the second Sr site, Sr is bonded in a 6-coordinate geometry to six Ga atoms. There are three shorter (3.38 Å) and three longer (3.40 Å) Sr–Ga bond lengths. In the third Sr site, Sr is bonded in a 6-coordinate geometry to six Ga atoms. There are a spread of Sr–Ga bond distances ranging from 3.28–3.53 Å. In the fourth Sr site, Sr is bonded in a 5-coordinate geometry to five Ga atoms. There are a spread of Sr–Ga bond distances ranging from 3.27–3.55 Å. There are three inequivalent Ga sites. In the first Ga site, Ga is bonded in a 9-coordinate geometry to six Sr and three equivalent Ga atoms. All Ga–Ga bond lengths are 2.76 Å. In the second Ga site, Ga is bonded in a 9-coordinate geometry to seven Sr and two equivalent Ga atoms. Both Ga–Ga bond lengths are 2.69 Å. In the third Ga site, Ga is bonded in a 9-coordinate geometry to six Sr and three Ga atoms. Both Ga–Ga bond lengths are 2.72 Å.