Materials Data on Li2TeSe3 by Materials Project
Li2TeSe3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six Se2- atoms to form a mixture of distorted edge and corner-sharing LiSe6 octahedra. The corner-sharing octahedra tilt angles range from 1–16°. There are a spread of Li–Se bond distances ranging from 2.64–3.26 Å. In the second Li1+ site, Li1+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing LiSe6 octahedra. The corner-sharing octahedra tilt angles range from 1–14°. There are a spread of Li–Se bond distances ranging from 2.78–2.97 Å. Te4+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are a spread of Te–Se bond distances ranging from 2.54–3.45 Å. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to five Li1+ and one Te4+ atom to form a mixture of edge and corner-sharing SeLi5Te octahedra. The corner-sharing octahedra tilt angles range from 1–16°. In the second Se2- site, Se2- is bonded to four Li1+ and two equivalent Te4+ atoms to form a mixture of distorted edge and corner-sharing SeLi4Te2 octahedra. The corner-sharing octahedra tilt angles range from 1–16°. In the third Se2- site, Se2- is bonded in a 6-coordinate geometry to three Li1+ and three equivalent Te4+ atoms.