Materials Data on TlTe by Materials Project

Abstract

TlTe crystallizes in the tetragonal P4_2/nmc space group. The structure is three-dimensional. there are five inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to seven Te1- atoms. There are a spread of Tl–Te bond distances ranging from 3.49–3.73 Å. In the second Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to three equivalent Tl1+ and seven Te1- atoms. There are one shorter (3.58 Å) and two longer (3.78 Å) Tl–Tl bond lengths. There are a spread of Tl–Te bond distances ranging from 3.50–3.72 Å. In the third Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to three equivalent Tl1+ and seven Te1- atoms. There are one shorter (3.58 Å) and two longer (3.78 Å) Tl–Tl bond lengths. There are a spread of Tl–Te bond distances ranging from 3.50–3.72 Å. In the fourth Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to three equivalent Tl1+ and seven Te1- atoms. There are one shorter (3.58 Å) and two longer (3.78 Å) Tl–Tl bond lengths. There are a spread of Tl–Te bond distances ranging from 3.50–3.72 Å. In the fifth Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to three equivalent Tl1+ and seven Te1- atoms. There are one shorter (3.58 Å) and two longer (3.78 Å) Tl–Tl bond lengths. There are a spread of Tl–Te bond distances ranging from 3.50–3.72 Å. There are five inequivalent Te1- sites. In the first Te1- site, Te1- is bonded in a 10-coordinate geometry to eight Tl1+ and two equivalent Te1- atoms. Both Te–Te bond lengths are 3.15 Å. In the second Te1- site, Te1- is bonded to four equivalent Tl1+ and four Te1- atoms to form corner-sharing TeTl4Te4 hexagonal bipyramids. There are a spread of Te–Te bond distances ranging from 3.01–3.28 Å. In the third Te1- site, Te1- is bonded to four Tl1+ and four Te1- atoms to form corner-sharing TeTl4Te4 hexagonal bipyramids. There are two shorter (3.04 Å) and two longer (3.15 Å) Te–Te bond lengths. In the fourth Te1- site, Te1- is bonded in a 9-coordinate geometry to eight Tl1+ and one Te1- atom. In the fifth Te1- site, Te1- is bonded in a 9-coordinate geometry to eight Tl1+ and one Te1- atom.