Materials Data on RbSb3 by Materials Project
RbSb3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Rb1+ is bonded in a 11-coordinate geometry to eleven Sb+0.33- atoms. There are a spread of Rb–Sb bond distances ranging from 3.30–3.61 Å. There are two inequivalent Sb+0.33- sites. In the first Sb+0.33- site, Sb+0.33- is bonded in a 5-coordinate geometry to four equivalent Rb1+ and one Sb+0.33- atom. The Sb–Sb bond length is 2.91 Å. In the second Sb+0.33- site, Sb+0.33- is bonded in a trigonal planar geometry to three equivalent Rb1+ atoms.