data_[Pm8Bi4Pb2]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.8440]
_cell_length_b [4.6083]
_cell_length_c [7.7770]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.3679]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm4Bi2Pb]
_chemical_formula_sum '[Pm8 Bi4 Pb2]'
_cell_volume [499.6434]
_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  0.1175  0.0000  0.7601  1
  Pm  Pm1  4  0.1184  0.5000  0.3095  1
  Bi  Bi2  4  0.2426  0.0000  0.2323  1
  Pb  Pb3  2  0.0000  0.0000  0.0000  1
]