data_[Pm8Sm4Pb12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [5.0294]
_cell_length_b [15.3814]
_cell_length_c [9.1651]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Pm2SmPb3]
_chemical_formula_sum '[Pm8 Sm4 Pb12]'
_cell_volume [709.0079]
_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  0.0000  0.3333  0.5000  1
  Pm  Pm1  2  0.0000  0.0000  0.0000  1
  Pm  Pm2  2  0.0000  0.0000  0.5000  1
  Sm  Sm3  4  0.0000  0.3331  0.0000  1
  Pb  Pb4  8  0.0000  0.1669  0.2492  1
  Pb  Pb5  4  0.0000  0.5000  0.2494  1
]