data_[Pm24Ga9Te12Se3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ga  1.8100  1.3000  0.7600
  Te  2.1000  1.4000  1.2933
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [8.6165]
_cell_length_b [8.6165]
_cell_length_c [22.1024]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Pm8Ga3Te4Se]
_chemical_formula_sum '[Pm24 Ga9 Te12 Se3]'
_cell_volume [1421.1056]
_cell_formula_units_Z [3]
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  18  0.0022  0.5011  0.7566  1
  Pm  Pm1  6  0.0000  0.0000  0.2457  1
  Ga  Ga2  9  0.0000  0.5000  0.5000  1
  Te  Te3  9  0.0000  0.5000  0.0000  1
  Te  Te4  3  -0.0000  -0.0000  0.0000  1
  Se  Se5  3  0.0000  0.0000  0.5000  1
]