RbBH4 crystallizes in the cubic F-43m space group. Rb(1) is bonded in a 12-coordinate geometry to twelve equivalent H(1) atoms. B(1) is bonded in a tetrahedral geometry to four equivalent H(1) atoms. H(1) is bonded in a single-bond geometry to three equivalent Rb(1) and one B(1) atom.
RbBH4 crystallizes in the cubic F-43m space group. Rb(1) is bonded in a 12-coordinate geometry to twelve equivalent H(1) atoms. All Rb(1)-H(1) bond lengths are 2.92 Å. B(1) is bonded in a tetrahedral geometry to four equivalent H(1) atoms. All B(1)-H(1) bond lengths are 1.23 Å. H(1) is bonded in a single-bond geometry to three equivalent Rb(1) and one B(1) atom.