Materials Data on RbEu3F10 by Materials Project

Abstract

RbEu3F10 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Rb1+ is bonded to sixteen F1- atoms to form distorted edge-sharing RbF16 tetrahedra. There are four shorter (2.89 Å) and twelve longer (3.33 Å) Rb–F bond lengths. Eu3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are four shorter (2.30 Å) and four longer (2.44 Å) Eu–F bond lengths. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded to one Rb1+ and three equivalent Eu3+ atoms to form a mixture of distorted edge and corner-sharing FRbEu3 tetrahedra. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent Rb1+ and two equivalent Eu3+ atoms.