Materials Data on RbGeI3 by Materials Project
RbGeI3 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Rb1+ is bonded in a 9-coordinate geometry to nine I1- atoms. There are a spread of Rb–I bond distances ranging from 3.79–4.27 Å. Ge2+ is bonded to six I1- atoms to form edge-sharing GeI6 octahedra. There are a spread of Ge–I bond distances ranging from 2.86–3.31 Å. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a 5-coordinate geometry to two equivalent Rb1+ and three equivalent Ge2+ atoms. In the second I1- site, I1- is bonded in a 5-coordinate geometry to three equivalent Rb1+ and two equivalent Ge2+ atoms. In the third I1- site, I1- is bonded in a 5-coordinate geometry to four equivalent Rb1+ and one Ge2+ atom.