Materials Data on Sr2HoTaO6 by Materials Project
Sr2HoTaO6 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.53–2.96 Å. Ho3+ is bonded to six O2- atoms to form HoO6 octahedra that share corners with six equivalent TaO6 octahedra. The corner-sharing octahedra tilt angles range from 24–26°. All Ho–O bond lengths are 2.25 Å. Ta5+ is bonded to six O2- atoms to form TaO6 octahedra that share corners with six equivalent HoO6 octahedra. The corner-sharing octahedra tilt angles range from 24–26°. There are two shorter (2.01 Å) and four longer (2.02 Å) Ta–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sr2+, one Ho3+, and one Ta5+ atom. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Sr2+, one Ho3+, and one Ta5+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Sr2+, one Ho3+, and one Ta5+ atom.