Materials Data on Er2Te3 by Materials Project
Er2Te3 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. there are two inequivalent Er3+ sites. In the first Er3+ site, Er3+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ErTe6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are two shorter (3.05 Å) and four longer (3.06 Å) Er–Te bond lengths. In the second Er3+ site, Er3+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ErTe6 octahedra. The corner-sharing octahedral tilt angles are 1°. There are four shorter (3.06 Å) and two longer (3.08 Å) Er–Te bond lengths. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Er3+ atoms. In the second Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Er3+ atoms.