data_[Pm8I4N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  I  2.6600  1.4000  1.2733
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [15.4159]
_cell_length_b [4.1871]
_cell_length_c [6.6694]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.4909]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Pm2IN2]
_chemical_formula_sum '[Pm8 I4 N8]'
_cell_volume [423.3053]
_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
[
  Pm  Pm0  8  0.1678  0.3215  0.1488  1
  I  I1  4  0.0000  0.2347  0.7500  1
  N  N2  8  0.2188  0.1418  0.5274  1
]