Materials Data on Eu2ReO5 by Materials Project

Abstract

Eu2ReO5 crystallizes in the tetragonal P4/n space group. The structure is three-dimensional. Eu3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Eu–O bond distances ranging from 2.32–2.70 Å. There are two inequivalent Re4+ sites. In the first Re4+ site, Re4+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Re–O bond lengths are 1.90 Å. In the second Re4+ site, Re4+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Re–O bond lengths are 1.89 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Eu3+ atoms to form a mixture of corner and edge-sharing OEu4 tetrahedra. In the second O2- site, O2- is bonded to four equivalent Eu3+ atoms to form OEu4 tetrahedra that share corners with twelve equivalent OEu3Re tetrahedra and edges with two equivalent OEu4 tetrahedra. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Eu3+ and one Re4+ atom. In the fourth O2- site, O2- is bonded to three equivalent Eu3+ and one Re4+ atom to form a mixture of distorted corner and edge-sharing OEu3Re tetrahedra.