Materials Data on Sr3Sn5 by Materials Project

Sr3Sn5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 9-coordinate geometry to nine Sn atoms. There are a spread of Sr–Sn bond distances ranging from 3.42–3.65 Å. In the second Sr site, Sr is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Sr–Sn bond distances ranging from 3.43–3.71 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 5-coordinate geometry to five Sr and four Sn atoms. There are two shorter (3.13 Å) and two longer (3.19 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 9-coordinate geometry to six Sr and three Sn atoms. Both Sn–Sn bond lengths are 3.08 Å. In the third Sn site, Sn is bonded in a 9-coordinate geometry to six Sr and three Sn atoms.