Materials Data on Tm2Te3 by Materials Project
Tm2Te3 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. there are two inequivalent Tm3+ sites. In the first Tm3+ site, Tm3+ is bonded to six Te2- atoms to form a mixture of corner and edge-sharing TmTe6 octahedra. The corner-sharing octahedral tilt angles are 1°. There are a spread of Tm–Te bond distances ranging from 3.05–3.08 Å. In the second Tm3+ site, Tm3+ is bonded to six Te2- atoms to form a mixture of corner and edge-sharing TmTe6 octahedra. The corner-sharing octahedral tilt angles are 1°. There are a spread of Tm–Te bond distances ranging from 3.04–3.06 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Tm3+ atoms. In the second Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Tm3+ atoms.