Materials Data on RbYbI3 by Materials Project
RbYbI3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Rb1+ is bonded in a 8-coordinate geometry to eight I1- atoms. There are a spread of Rb–I bond distances ranging from 3.81–4.19 Å. Yb2+ is bonded to six I1- atoms to form edge-sharing YbI6 octahedra. There are a spread of Yb–I bond distances ranging from 3.06–3.19 Å. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted rectangular see-saw-like geometry to one Rb1+ and three equivalent Yb2+ atoms. In the second I1- site, I1- is bonded in a 5-coordinate geometry to four equivalent Rb1+ and one Yb2+ atom. In the third I1- site, I1- is bonded in a 2-coordinate geometry to three equivalent Rb1+ and two equivalent Yb2+ atoms.