data_[Pm8Br4N4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Br  2.9600  1.1500  0.8825
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.4131]
_cell_length_b [3.9847]
_cell_length_c [10.0423]
_cell_angle_alpha [90.0000]
_cell_angle_beta [126.0713]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm2BrNO]
_chemical_formula_sum '[Pm8 Br4 N4 O4]'
_cell_volume [433.8380]
_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  4  0.0565  0.5000  0.2958  1
  Pm  Pm1  4  0.1648  0.0000  0.0494  1
  Br  Br2  4  0.1656  0.0000  0.6035  1
  N  N3  4  0.1392  0.5000  0.9120  1
  O  O4  4  0.0636  0.0000  0.1878  1
]