data_[Pm4Tm4Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tm  1.2500  1.7500  1.0950
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [6.3864]
_cell_length_b [6.3884]
_cell_length_c [12.0855]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.1657]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [PmTmPb2]
_chemical_formula_sum '[Pm4 Tm4 Pb8]'
_cell_volume [478.0845]
_cell_formula_units_Z [4]
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  0.1876  0.1277  0.1312  1
  Tm  Tm1  4  0.3205  0.3719  0.8737  1
  Pb  Pb2  4  0.1695  0.3728  0.6048  1
  Pb  Pb3  4  0.3294  0.1310  0.4036  1
]