data_[Pm8Bi6O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.3948]
_cell_length_b [4.1845]
_cell_length_c [9.5597]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.5335]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm4Bi3O2]
_chemical_formula_sum '[Pm8 Bi6 O4]'
_cell_volume [485.4634]
_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
[
  Pm  Pm0  4  0.1240  0.0000  0.4095  1
  Pm  Pm1  4  0.1899  0.5000  0.1307  1
  Bi  Bi2  4  0.1053  0.5000  0.7029  1
  Bi  Bi3  2  0.0000  0.0000  0.0000  1
  O  O4  4  0.1925  0.5000  0.3733  1
]