Materials Data on ErCoSn2 by Materials Project

Abstract

ErCoSn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Er is bonded in a 12-coordinate geometry to four equivalent Co and ten Sn atoms. All Er–Co bond lengths are 3.26 Å. There are a spread of Er–Sn bond distances ranging from 3.27–3.79 Å. Co is bonded in a 9-coordinate geometry to four equivalent Er and five Sn atoms. There are a spread of Co–Sn bond distances ranging from 2.42–2.58 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 12-coordinate geometry to four equivalent Er and four equivalent Co atoms. In the second Sn site, Sn is bonded in a 1-coordinate geometry to six equivalent Er, one Co, and two equivalent Sn atoms. Both Sn–Sn bond lengths are 2.83 Å.