Materials Data on Eu5Ga9 by Materials Project

Abstract

Eu5Ga9 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are three inequivalent Eu sites. In the first Eu site, Eu is bonded in a 12-coordinate geometry to twelve Ga atoms. There are a spread of Eu–Ga bond distances ranging from 3.11–3.42 Å. In the second Eu site, Eu is bonded in a 11-coordinate geometry to eleven Ga atoms. There are a spread of Eu–Ga bond distances ranging from 3.14–3.41 Å. In the third Eu site, Eu is bonded in a 9-coordinate geometry to nine Ga atoms. There are a spread of Eu–Ga bond distances ranging from 3.17–3.36 Å. There are five inequivalent Ga sites. In the first Ga site, Ga is bonded in a 10-coordinate geometry to six Eu and four Ga atoms. There are a spread of Ga–Ga bond distances ranging from 2.66–2.77 Å. In the second Ga site, Ga is bonded in a 9-coordinate geometry to seven Eu and two equivalent Ga atoms. Both Ga–Ga bond lengths are 2.64 Å. In the third Ga site, Ga is bonded in a 10-coordinate geometry to six Eu and four Ga atoms. Both Ga–Ga bond lengths are 2.67 Å. In the fourth Ga site, Ga is bonded in a 10-coordinate geometry to six Eu and four Ga atoms. There are one shorter (2.62 Å) and one longer (2.76 Å) Ga–Ga bond lengths. In the fifth Ga site, Ga is bonded in a 10-coordinate geometry to six Eu and four Ga atoms.