The material described by 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. is represented by the CIF card [CIF]
data_RbAl(H2N)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.687
_cell_length_b   7.687
_cell_length_c   5.127
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   302.929
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Rb  Rb0  1  0.250  0.250  0.577  1.0
  Rb  Rb1  1  0.750  0.750  0.423  1.0
  Al  Al2  1  0.250  0.750  0.000  1.0
  Al  Al3  1  0.750  0.250  0.000  1.0
  H  H4  1  0.416  0.484  0.172  1.0
  H  H5  1  0.129  0.614  0.594  1.0
  H  H6  1  0.016  0.416  0.172  1.0
  H  H7  1  0.114  0.871  0.406  1.0
  H  H8  1  0.386  0.629  0.406  1.0
  H  H9  1  0.484  0.084  0.172  1.0
  H  H10  1  0.371  0.886  0.594  1.0
  H  H11  1  0.084  0.016  0.172  1.0
  H  H12  1  0.916  0.984  0.828  1.0
  H  H13  1  0.629  0.114  0.406  1.0
  H  H14  1  0.516  0.916  0.828  1.0
  H  H15  1  0.614  0.371  0.594  1.0
  H  H16  1  0.886  0.129  0.594  1.0
  H  H17  1  0.984  0.584  0.828  1.0
  H  H18  1  0.871  0.386  0.406  1.0
  H  H19  1  0.584  0.516  0.828  1.0
  N  N20  1  0.416  0.838  0.767  1.0
  N  N21  1  0.338  0.584  0.233  1.0
  N  N22  1  0.162  0.916  0.233  1.0
  N  N23  1  0.084  0.662  0.767  1.0
  N  N24  1  0.916  0.338  0.233  1.0
  N  N25  1  0.838  0.084  0.767  1.0
  N  N26  1  0.662  0.416  0.767  1.0
  N  N27  1  0.584  0.162  0.233  1.0
[/CIF]
.
The material described by 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. is represented by the CIF card [CIF]
data_RbAl(H2N)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.687
_cell_length_b   7.687
_cell_length_c   5.127
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   302.929
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Rb  Rb0  1  0.250  0.250  0.577  1.0
  Rb  Rb1  1  0.750  0.750  0.423  1.0
  Al  Al2  1  0.250  0.750  0.000  1.0
  Al  Al3  1  0.750  0.250  0.000  1.0
  H  H4  1  0.416  0.484  0.172  1.0
  H  H5  1  0.129  0.614  0.594  1.0
  H  H6  1  0.016  0.416  0.172  1.0
  H  H7  1  0.114  0.871  0.406  1.0
  H  H8  1  0.386  0.629  0.406  1.0
  H  H9  1  0.484  0.084  0.172  1.0
  H  H10  1  0.371  0.886  0.594  1.0
  H  H11  1  0.084  0.016  0.172  1.0
  H  H12  1  0.916  0.984  0.828  1.0
  H  H13  1  0.629  0.114  0.406  1.0
  H  H14  1  0.516  0.916  0.828  1.0
  H  H15  1  0.614  0.371  0.594  1.0
  H  H16  1  0.886  0.129  0.594  1.0
  H  H17  1  0.984  0.584  0.828  1.0
  H  H18  1  0.871  0.386  0.406  1.0
  H  H19  1  0.584  0.516  0.828  1.0
  N  N20  1  0.416  0.838  0.767  1.0
  N  N21  1  0.338  0.584  0.233  1.0
  N  N22  1  0.162  0.916  0.233  1.0
  N  N23  1  0.084  0.662  0.767  1.0
  N  N24  1  0.916  0.338  0.233  1.0
  N  N25  1  0.838  0.084  0.767  1.0
  N  N26  1  0.662  0.416  0.767  1.0
  N  N27  1  0.584  0.162  0.233  1.0
[/CIF]
.