Materials Data on Sr2Bi3 by Materials Project
Sr2Bi3 crystallizes in the orthorhombic Pnna space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 8-coordinate geometry to eight Bi atoms. There are a spread of Sr–Bi bond distances ranging from 3.49–3.82 Å. In the second Sr site, Sr is bonded in a 8-coordinate geometry to eight Bi atoms. There are a spread of Sr–Bi bond distances ranging from 3.44–3.62 Å. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 6-coordinate geometry to six Sr and two equivalent Bi atoms. Both Bi–Bi bond lengths are 3.35 Å. In the second Bi site, Bi is bonded in a 8-coordinate geometry to five Sr and three Bi atoms. There are one shorter (3.14 Å) and one longer (3.46 Å) Bi–Bi bond lengths.