Materials Data on Ho2Te5 by Materials Project
Ho2Te5 crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two Ho2Te5 sheets oriented in the (0, 1, 0) direction. there are two inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded in a 9-coordinate geometry to nine Te+1.20- atoms. There are a spread of Ho–Te bond distances ranging from 3.23–3.27 Å. In the second Ho3+ site, Ho3+ is bonded in a 9-coordinate geometry to nine Te+1.20- atoms. There are a spread of Ho–Te bond distances ranging from 3.15–3.30 Å. There are four inequivalent Te+1.20- sites. In the first Te+1.20- site, Te+1.20- is bonded in a 6-coordinate geometry to two equivalent Ho3+ and four equivalent Te+1.20- atoms. All Te–Te bond lengths are 3.10 Å. In the second Te+1.20- site, Te+1.20- is bonded in a 8-coordinate geometry to four equivalent Ho3+ and four equivalent Te+1.20- atoms. All Te–Te bond lengths are 3.10 Å. In the third Te+1.20- site, Te+1.20- is bonded to five Ho3+ atoms to form a mixture of distorted corner and edge-sharing TeHo5 trigonal bipyramids. In the fourth Te+1.20- site, Te+1.20- is bonded in a 5-coordinate geometry to five Ho3+ atoms.