Materials Data on Rb8Tl11 by Materials Project
Rb8Tl11 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. there are two inequivalent Rb sites. In the first Rb site, Rb is bonded in a 7-coordinate geometry to seven Tl atoms. There are a spread of Rb–Tl bond distances ranging from 3.78–4.19 Å. In the second Rb site, Rb is bonded in a 3-coordinate geometry to nine Tl atoms. There are a spread of Rb–Tl bond distances ranging from 3.98–4.33 Å. There are three inequivalent Tl sites. In the first Tl site, Tl is bonded in a 12-coordinate geometry to six equivalent Rb and six Tl atoms. There are three shorter (3.25 Å) and three longer (3.53 Å) Tl–Tl bond lengths. In the second Tl site, Tl is bonded in a 10-coordinate geometry to six Rb and four Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.15–3.30 Å. In the third Tl site, Tl is bonded in a 2-coordinate geometry to four Rb and six Tl atoms.