Materials Data on Ca2FeReO6 by Materials Project
Ca2FeReO6 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.76 Å. Re5+ is bonded to six O2- atoms to form ReO6 octahedra that share corners with six equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 31–33°. There are a spread of Re–O bond distances ranging from 1.93–1.97 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent ReO6 octahedra. The corner-sharing octahedra tilt angles range from 31–33°. There are a spread of Fe–O bond distances ranging from 2.07–2.19 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ca2+, one Re5+, and one Fe3+ atom to form distorted corner-sharing OCa2FeRe tetrahedra. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Ca2+, one Re5+, and one Fe3+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Ca2+, one Re5+, and one Fe3+ atom.