CsAl(NH2)4 crystallizes in the tetragonal P4/n space group. Cs(1) is bonded in a 16-coordinate geometry to four equivalent N(1), four equivalent H(1), and eight 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 planar geometry to one Cs(1), 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 Cs(1) and one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to two equivalent Cs(1) and one N(1) atom.
CsAl(NH2)4 crystallizes in the tetragonal P4/n space group. Cs(1) is bonded in a 16-coordinate geometry to four equivalent N(1), four equivalent H(1), and eight equivalent H(2) atoms. All Cs(1)-N(1) bond lengths are 3.40 Å. All Cs(1)-H(1) bond lengths are 3.06 Å. There are four shorter (3.12 Å) and four longer (3.31 Å) Cs(1)-H(2) bond lengths. Al(1) is bonded in a tetrahedral geometry to four equivalent N(1) atoms. All Al(1)-N(1) bond lengths are 1.85 Å. N(1) is bonded in a distorted trigonal planar geometry to one Cs(1), one Al(1), one H(1), and one H(2) atom. The N(1)-H(1) bond length is 1.01 Å. The N(1)-H(2) bond length is 1.01 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one Cs(1) and one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to two equivalent Cs(1) and one N(1) atom.