Materials Data on Sr4Fe3ReO12 by Materials Project

Abstract

Sr4ReFe3O12 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Im-3m space group. The structure is three-dimensional. Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with twelve equivalent SrO12 cuboctahedra, faces with six equivalent SrO12 cuboctahedra, faces with two equivalent ReO6 octahedra, and faces with six equivalent FeO6 octahedra. All Sr–O bond lengths are 2.82 Å. Re7+ is bonded to six equivalent O2- atoms to form ReO6 octahedra that share corners with six equivalent FeO6 octahedra and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Re–O bond lengths are 1.89 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent ReO6 octahedra, corners with four equivalent FeO6 octahedra, and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (1.99 Å) and two longer (2.09 Å) Fe–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to four equivalent Sr2+ and two equivalent Fe3+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to four equivalent Sr2+, one Re7+, and one Fe3+ atom.