Materials Data on Gd2ReO5 by Materials Project
Gd2ReO5 crystallizes in the tetragonal P4/n space group. The structure is three-dimensional. Gd3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Gd–O bond distances ranging from 2.29–2.67 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 1.94 Å. In the second Re4+ site, Re4+ is bonded in a distorted square co-planar geometry to four equivalent O2- atoms. All Re–O bond lengths are 1.94 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Gd3+ atoms to form OGd4 tetrahedra that share corners with twelve equivalent OGd3Re tetrahedra and edges with two equivalent OGd4 tetrahedra. In the second O2- site, O2- is bonded to four equivalent Gd3+ atoms to form a mixture of edge and corner-sharing OGd4 tetrahedra. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three equivalent Gd3+ and one Re4+ atom. In the fourth O2- site, O2- is bonded to three equivalent Gd3+ and one Re4+ atom to form a mixture of distorted edge and corner-sharing OGd3Re tetrahedra.