Materials Data on Eu3Sn5 by Materials Project

Abstract

Eu3Sn5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Eu sites. In the first Eu site, Eu is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Eu–Sn bond distances ranging from 3.36–3.62 Å. In the second Eu site, Eu is bonded in a 9-coordinate geometry to nine Sn atoms. There are a spread of Eu–Sn bond distances ranging from 3.26–3.64 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 9-coordinate geometry to six Eu and three Sn atoms. There are two shorter (3.06 Å) and one longer (3.10 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 5-coordinate geometry to five Eu and four Sn atoms. Both Sn–Sn bond lengths are 3.21 Å. In the third Sn site, Sn is bonded in a 6-coordinate geometry to six Eu and four Sn atoms. The Sn–Sn bond length is 3.43 Å.