data_[Pm16Te8Pb6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Te  2.1000  1.4000  1.2933
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.6131]
_cell_length_b [12.6462]
_cell_length_c [8.9027]
_cell_angle_alpha [90.0000]
_cell_angle_beta [134.7299]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm8Te4Pb3]
_chemical_formula_sum '[Pm16 Te8 Pb6]'
_cell_volume [1008.8525]
_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  0.2512  0.5000  1
  Pm  Pm1  4  0.0000  0.2522  0.0000  1
  Pm  Pm2  4  0.2446  0.5000  0.9988  1
  Pm  Pm3  4  0.2466  0.5000  0.4990  1
  Te  Te4  4  0.2500  0.2500  0.5000  1
  Te  Te5  2  0.0000  0.0000  0.0000  1
  Te  Te6  2  0.0000  0.0000  0.5000  1
  Pb  Pb7  4  0.2500  0.2500  0.0000  1
  Pb  Pb8  2  0.0000  0.5000  0.5000  1
]