Rb crystallizes in the monoclinic C2/c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a body-centered cubic geometry to four equivalent Rb(1) and four equivalent Rb(2) atoms. In the second Rb site, Rb(2) is bonded in a distorted body-centered cubic geometry to four equivalent Rb(1) and four equivalent Rb(2) atoms.
Rb crystallizes in the monoclinic C2/c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a body-centered cubic geometry to four equivalent Rb(1) and four equivalent Rb(2) atoms. There are a spread of Rb(1)-Rb(1) bond distances ranging from 4.74-5.08 Å. There are a spread of Rb(1)-Rb(2) bond distances ranging from 4.79-5.09 Å. In the second Rb site, Rb(2) is bonded in a distorted body-centered cubic geometry to four equivalent Rb(1) and four equivalent Rb(2) atoms. There are a spread of Rb(2)-Rb(2) bond distances ranging from 4.74-5.08 Å.