data_[Ce6Pm4Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Pm  1.1300  1.8500  1.1100
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.7529]
_cell_length_b [5.1476]
_cell_length_c [6.8983]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.4473]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ce3(PmPb2)2]
_chemical_formula_sum '[Ce6 Pm4 Pb8]'
_cell_volume [576.0806]
_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
[
  Ce  Ce0  4  0.1121  0.0000  0.5740  1
  Ce  Ce1  2  0.0000  0.0000  0.0000  1
  Pm  Pm2  4  0.1671  0.5000  0.0847  1
  Pb  Pb3  4  0.0049  0.5000  0.2828  1
  Pb  Pb4  4  0.2469  0.5000  0.6927  1
]