data_[Pm10Hg12Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Hg  2.0000  1.5000  1.2450
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.2718]
_cell_length_b [7.7919]
_cell_length_c [16.1416]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Pm5Hg6Pb]
_chemical_formula_sum '[Pm10 Hg12 Pb2]'
_cell_volume [663.0523]
_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  4  0.0000  0.0000  0.3206  1
  Pm  Pm1  4  0.0000  0.5000  0.3596  1
  Pm  Pm2  2  0.0000  0.5000  0.0000  1
  Hg  Hg3  8  0.0000  0.2672  0.8265  1
  Hg  Hg4  4  0.0000  0.2155  0.5000  1
  Pb  Pb5  2  0.0000  0.0000  0.0000  1
]