data_[Pm8Mg6Pb10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Mg  1.3100  1.5000  0.8600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.6599]
_cell_length_b [5.0999]
_cell_length_c [12.3471]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.8689]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm4Mg3Pb5]
_chemical_formula_sum '[Pm8 Mg6 Pb10]'
_cell_volume [723.3436]
_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  0.1083  0.0000  0.7472  1
  Pm  Pm1  4  0.1376  0.0000  0.0954  1
  Mg  Mg2  4  0.2308  0.0000  0.3895  1
  Mg  Mg3  2  0.0000  0.5000  0.5000  1
  Pb  Pb4  4  0.0949  0.5000  0.9209  1
  Pb  Pb5  4  0.1138  0.5000  0.2775  1
  Pb  Pb6  2  0.0000  0.0000  0.5000  1
]