Materials Data on TbCoSn2 by Materials Project
TbCoSn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Tb is bonded in a 12-coordinate geometry to four equivalent Co and ten Sn atoms. All Tb–Co bond lengths are 3.35 Å. There are a spread of Tb–Sn bond distances ranging from 3.30–3.69 Å. Co is bonded in a 9-coordinate geometry to four equivalent Tb and five Sn atoms. There are a spread of Co–Sn bond distances ranging from 2.41–2.56 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 1-coordinate geometry to six equivalent Tb, one Co, and two equivalent Sn atoms. Both Sn–Sn bond lengths are 2.85 Å. In the second Sn site, Sn is bonded in a 12-coordinate geometry to four equivalent Tb and four equivalent Co atoms.