Materials Data on Er5(CoTe)2 by Materials Project

Abstract

Er5Co2Te2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are three inequivalent Er sites. In the first Er site, Er is bonded in a distorted square co-planar geometry to two Co and two equivalent Te atoms. There are one shorter (2.90 Å) and one longer (3.18 Å) Er–Co bond lengths. Both Er–Te bond lengths are 3.17 Å. In the second Er site, Er is bonded in a 6-coordinate geometry to three Co and three equivalent Te atoms. There are two shorter (2.79 Å) and one longer (2.90 Å) Er–Co bond lengths. There are one shorter (3.13 Å) and two longer (3.19 Å) Er–Te bond lengths. In the third Er site, Er is bonded in a 7-coordinate geometry to three Co and four equivalent Te atoms. There are two shorter (2.79 Å) and one longer (2.81 Å) Er–Co bond lengths. There are two shorter (3.32 Å) and two longer (3.36 Å) Er–Te bond lengths. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 9-coordinate geometry to seven Er and two equivalent Co atoms. Both Co–Co bond lengths are 2.40 Å. In the second Co site, Co is bonded in a 9-coordinate geometry to seven Er and two equivalent Co atoms. Te is bonded in a 8-coordinate geometry to eight Er atoms.