data_[Pm16Pr2Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.7446]
_cell_length_b [6.8854]
_cell_length_c [6.4992]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.9493]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm8PrPb2]
_chemical_formula_sum '[Pm16 Pr2 Pb4]'
_cell_volume [746.5179]
_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  8  0.0977  0.2557  0.4046  1
  Pm  Pm1  4  0.0835  0.5000  0.8984  1
  Pm  Pm2  4  0.2119  0.0000  0.8317  1
  Pr  Pr3  2  0.0000  0.0000  0.0000  1
  Pb  Pb4  4  0.2446  0.5000  0.6713  1
]