The structure described by 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. is represented by the CIF file [CIF]
data_CsAl(H2N)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.506
_cell_length_b   7.506
_cell_length_c   5.262
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   296.472
_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
  Cs  Cs0  1  0.000  0.500  0.755  1.0
  Cs  Cs1  1  0.500  0.000  0.245  1.0
  Al  Al2  1  0.500  0.500  0.000  1.0
  Al  Al3  1  0.000  0.000  0.000  1.0
  H  H4  1  0.178  0.023  0.599  1.0
  H  H5  1  0.822  0.977  0.599  1.0
  H  H6  1  0.523  0.322  0.599  1.0
  H  H7  1  0.477  0.678  0.599  1.0
  H  H8  1  0.322  0.477  0.401  1.0
  H  H9  1  0.678  0.523  0.401  1.0
  H  H10  1  0.977  0.178  0.401  1.0
  H  H11  1  0.023  0.822  0.401  1.0
  H  H12  1  0.279  0.160  0.799  1.0
  H  H13  1  0.721  0.840  0.799  1.0
  H  H14  1  0.660  0.221  0.799  1.0
  H  H15  1  0.340  0.779  0.799  1.0
  H  H16  1  0.221  0.340  0.201  1.0
  H  H17  1  0.779  0.660  0.201  1.0
  H  H18  1  0.840  0.279  0.201  1.0
  H  H19  1  0.160  0.721  0.201  1.0
  N  N20  1  0.170  0.081  0.774  1.0
  N  N21  1  0.830  0.919  0.774  1.0
  N  N22  1  0.581  0.330  0.774  1.0
  N  N23  1  0.419  0.670  0.774  1.0
  N  N24  1  0.330  0.419  0.226  1.0
  N  N25  1  0.670  0.581  0.226  1.0
  N  N26  1  0.919  0.170  0.226  1.0
  N  N27  1  0.081  0.830  0.226  1.0
[/CIF]
.
The structure described by 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. is represented by the CIF file [CIF]
data_CsAl(H2N)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.506
_cell_length_b   7.506
_cell_length_c   5.262
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   296.472
_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
  Cs  Cs0  1  0.000  0.500  0.755  1.0
  Cs  Cs1  1  0.500  0.000  0.245  1.0
  Al  Al2  1  0.500  0.500  0.000  1.0
  Al  Al3  1  0.000  0.000  0.000  1.0
  H  H4  1  0.178  0.023  0.599  1.0
  H  H5  1  0.822  0.977  0.599  1.0
  H  H6  1  0.523  0.322  0.599  1.0
  H  H7  1  0.477  0.678  0.599  1.0
  H  H8  1  0.322  0.477  0.401  1.0
  H  H9  1  0.678  0.523  0.401  1.0
  H  H10  1  0.977  0.178  0.401  1.0
  H  H11  1  0.023  0.822  0.401  1.0
  H  H12  1  0.279  0.160  0.799  1.0
  H  H13  1  0.721  0.840  0.799  1.0
  H  H14  1  0.660  0.221  0.799  1.0
  H  H15  1  0.340  0.779  0.799  1.0
  H  H16  1  0.221  0.340  0.201  1.0
  H  H17  1  0.779  0.660  0.201  1.0
  H  H18  1  0.840  0.279  0.201  1.0
  H  H19  1  0.160  0.721  0.201  1.0
  N  N20  1  0.170  0.081  0.774  1.0
  N  N21  1  0.830  0.919  0.774  1.0
  N  N22  1  0.581  0.330  0.774  1.0
  N  N23  1  0.419  0.670  0.774  1.0
  N  N24  1  0.330  0.419  0.226  1.0
  N  N25  1  0.670  0.581  0.226  1.0
  N  N26  1  0.919  0.170  0.226  1.0
  N  N27  1  0.081  0.830  0.226  1.0
[/CIF]
.