RbAl(NH2)4 crystallizes in the tetragonal P4/n space group. Rb(1) is bonded in a 8-coordinate geometry to four equivalent H(1) and four equivalent H(2) atoms. Al(1) is bonded in a tetrahedral geometry to four equivalent N(1) atoms. N(1) is bonded in a distorted trigonal non-coplanar geometry to one Al(1), one H(1), and one H(2) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one Rb(1) and one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one Rb(1) and one N(1) atom.
RbAl(NH2)4 crystallizes in the tetragonal P4/n space group. Rb(1) is bonded in a 8-coordinate geometry to four equivalent H(1) and four equivalent H(2) atoms. All Rb(1)-H(1) bond lengths are 3.03 Å. All Rb(1)-H(2) bond lengths are 2.95 Å. Al(1) is bonded in a tetrahedral geometry to four equivalent N(1) atoms. All Al(1)-N(1) bond lengths are 1.88 Å. N(1) is bonded in a distorted trigonal non-coplanar geometry to one Al(1), one H(1), and one H(2) atom. The N(1)-H(1) bond length is 1.02 Å. The N(1)-H(2) bond length is 1.02 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one Rb(1) and one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one Rb(1) and one N(1) atom.