data_H3N
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.12
_cell_length_b   5.12
_cell_length_c   5.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   H3N
_chemical_formula_sum   'H12 N4'
_cell_volume   133.93
_cell_formula_units_Z   4
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
  H  H0  1  0.71  0.73  0.08  1.0
  H  H1  1  0.27  0.94  0.04  1.0
  H  H2  1  0.41  0.17  0.6  1.0
  H  H3  1  0.94  0.04  0.27  1.0
  H  H4  1  0.85  0.38  0.52  1.0
  H  H5  1  0.52  0.85  0.38  1.0
  H  H6  1  0.38  0.52  0.85  1.0
  H  H7  1  0.17  0.6  0.41  1.0
  H  H8  1  0.08  0.71  0.73  1.0
  H  H9  1  0.73  0.08  0.71  1.0
  H  H10  1  0.04  0.27  0.94  1.0
  H  H11  1  0.6  0.41  0.17  1.0
  N  N12  1  0.08  0.59  0.53  1.0
  N  N13  1  0.59  0.53  0.08  1.0
  N  N14  1  0.53  0.08  0.59  1.0
  N  N15  1  0.03  0.03  0.03  1.0

data_H3N
_symmetry_space_group_name_H-M   R3
_cell_length_a   7.24
_cell_length_b   7.24
_cell_length_c   8.86
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   146
_chemical_formula_structural   H3N
_chemical_formula_sum   'H36 N12'
_cell_volume   401.79
_cell_formula_units_Z   12
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  'x+1/3, y+2/3, z+2/3'
  5  '-y+1/3, x-y+2/3, z+2/3'
  6  '-x+y+1/3, -x+2/3, z+2/3'
  7  'x+2/3, y+1/3, z+1/3'
  8  '-y+2/3, x-y+1/3, z+1/3'
  9  '-x+y+2/3, -x+1/3, z+1/3'
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
  H  H0  9  0.02  0.8  0.39  1.0
  H  H1  9  0.13  0.4  0.25  1.0
  H  H2  9  0.18  0.04  0.08  1.0
  H  H3  9  0.2  0.43  0.51  1.0
  N  N4  9  0.02  0.54  0.07  1.0
  N  N5  3  0.0  0.0  0.03  1.0

H H H H H H H H H H H H N N N N
NH3 is Ammonia structured and crystallizes in the trigonal R3 space group. The structure is zero-dimensional and consists of three ammonia molecules and nine azane;molecular hydrogen molecules.