data_[La4Pm8Pb6O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Pm  1.1300  1.8500  1.1100
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [4.8517]
_cell_length_b [4.8517]
_cell_length_c [26.4098]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [La2Pm4Pb3O2]
_chemical_formula_sum '[La4 Pm8 Pb6 O4]'
_cell_volume [621.6470]
_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
[
  La  La0  4  0.0000  0.0000  0.3074  1
  Pm  Pm1  8  0.0000  0.5000  0.0818  1
  Pb  Pb2  4  0.0000  0.0000  0.1762  1
  Pb  Pb3  2  0.0000  0.0000  0.0000  1
  O  O4  4  0.0000  0.0000  0.4009  1
]