Materials Data on TaZn2FeO6 by Materials Project
TaFeZn2O6 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Ta5+ is bonded to six O2- atoms to form TaO6 octahedra that share corners with two equivalent TaO6 octahedra and corners with four equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 41–44°. There are a spread of Ta–O bond distances ranging from 1.98–2.06 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra and corners with four equivalent TaO6 octahedra. The corner-sharing octahedra tilt angles range from 42–44°. There are a spread of Fe–O bond distances ranging from 2.04–2.07 Å. There are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Zn–O bond distances ranging from 2.00–2.30 Å. In the second Zn2+ site, Zn2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Zn–O bond distances ranging from 2.06–2.11 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Ta5+, one Fe3+, and one Zn2+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Ta5+, one Fe3+, and one Zn2+ atom. In the third O2- site, O2- is bonded to two equivalent Ta5+ and two Zn2+ atoms to form distorted corner-sharing OTa2Zn2 tetrahedra. In the fourth O2- site, O2- is bonded to two equivalent Fe3+ and two Zn2+ atoms to form distorted corner-sharing OZn2Fe2 tetrahedra.