data_[Pm12Cd4Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Cd  1.6900  1.5500  1.0900
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [16.9947]
_cell_length_b [6.5603]
_cell_length_c [6.5432]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.3086]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Pm3CdPb2]
_chemical_formula_sum '[Pm12 Cd4 Pb8]'
_cell_volume [709.9091]
_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  8  0.1716  0.1087  0.1012  1
  Pm  Pm1  4  0.0000  0.3510  0.7500  1
  Cd  Cd2  4  0.0000  0.1345  0.2500  1
  Pb  Pb3  8  0.1577  0.3934  0.5522  1
]