Materials Data on Sr3TeO6 by Materials Project

Abstract

Sr3TeO6 is Orthorhombic Perovskite-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to six O2- atoms to form SrO6 octahedra that share corners with six equivalent TeO6 octahedra. The corner-sharing octahedra tilt angles range from 28–36°. There are a spread of Sr–O bond distances ranging from 2.43–2.50 Å. In the second Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.53–3.13 Å. Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with six equivalent SrO6 octahedra. The corner-sharing octahedra tilt angles range from 28–36°. There is four shorter (1.96 Å) and two longer (1.97 Å) Te–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Sr2+ and one Te6+ atom to form distorted corner-sharing OSr3Te tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+ and one Te6+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and one Te6+ atom.