Materials Data on RbBi3F10 by Materials Project
RbBi3F10 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Rb1+ is bonded in a distorted tetrahedral geometry to four equivalent F1- atoms. All Rb–F bond lengths are 2.89 Å. Bi3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are four shorter (2.31 Å) and four longer (2.49 Å) Bi–F bond lengths. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent Bi3+ atoms. In the second F1- site, F1- is bonded to one Rb1+ and three equivalent Bi3+ atoms to form a mixture of edge and corner-sharing FRbBi3 tetrahedra.
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