Materials Data on Eu2Pt2O7 by Materials Project

Abstract

Eu2Pt2O7 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Eu3+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are two shorter (2.26 Å) and six longer (2.54 Å) Eu–O bond lengths. Pt4+ is bonded to six equivalent O2- atoms to form corner-sharing PtO6 octahedra. The corner-sharing octahedral tilt angles are 51°. All Pt–O bond lengths are 2.04 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Eu3+ atoms to form OEu4 tetrahedra that share corners with sixteen OEu4 tetrahedra and edges with six equivalent OEu2Pt2 tetrahedra. In the second O2- site, O2- is bonded to two equivalent Eu3+ and two equivalent Pt4+ atoms to form a mixture of distorted edge and corner-sharing OEu2Pt2 tetrahedra.