Materials Data on Rb3W by Materials Project
Rb3W is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Rb sites. In the first Rb site, Rb is bonded to four equivalent Rb and four equivalent W atoms to form a mixture of distorted edge, face, and corner-sharing RbRb4W4 tetrahedra. All Rb–Rb bond lengths are 4.15 Å. All Rb–W bond lengths are 4.15 Å. In the second Rb site, Rb is bonded in a body-centered cubic geometry to eight equivalent Rb atoms. W is bonded in a body-centered cubic geometry to eight equivalent Rb atoms.