Materials Data on Rb2AlTlH6 by Materials Project
Rb2AlH6Tl crystallizes in the cubic Fm-3m space group. The structure is three-dimensional and consists of four thallium molecules and one Rb2AlH6 framework. In the Rb2AlH6 framework, Rb1+ is bonded to twelve equivalent H1- atoms to form distorted RbH12 cuboctahedra that share corners with twelve equivalent RbH12 cuboctahedra, faces with six equivalent RbH12 cuboctahedra, and faces with four equivalent AlH6 octahedra. All Rb–H bond lengths are 3.10 Å. Al3+ is bonded to six equivalent H1- atoms to form AlH6 octahedra that share faces with eight equivalent RbH12 cuboctahedra. All Al–H bond lengths are 1.79 Å. H1- is bonded in a single-bond geometry to four equivalent Rb1+ and one Al3+ atom.