Materials Data on RbInI4 by Materials Project
RbInI4 crystallizes in the trigonal R3c space group. The structure is three-dimensional. Rb1+ is bonded in a 7-coordinate geometry to seven I1- atoms. There are a spread of Rb–I bond distances ranging from 3.78–4.13 Å. In3+ is bonded in a tetrahedral geometry to four I1- atoms. There are one shorter (2.76 Å) and three longer (2.77 Å) In–I bond lengths. There are four inequivalent I1- sites. In the first I1- site, I1- is bonded in an L-shaped geometry to one Rb1+ and one In3+ atom. In the second I1- site, I1- is bonded in a 3-coordinate geometry to two equivalent Rb1+ and one In3+ atom. In the third I1- site, I1- is bonded in a 1-coordinate geometry to two equivalent Rb1+ and one In3+ atom. In the fourth I1- site, I1- is bonded in a 3-coordinate geometry to two equivalent Rb1+ and one In3+ atom.