data_[Pm24Ga4Se16]
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
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.1219]
_cell_length_b [13.8609]
_cell_length_c [21.2826]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pm6GaSe4]
_chemical_formula_sum '[Pm24 Ga4 Se16]'
_cell_volume [1215.9504]
_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  8  0.0000  0.0542  0.1667  1
  Pm  Pm1  8  0.0000  0.2252  0.5853  1
  Pm  Pm2  4  0.0000  0.3290  0.2500  1
  Pm  Pm3  4  0.0000  0.5000  0.0000  1
  Ga  Ga4  4  0.0000  0.3309  0.7500  1
  Se  Se5  8  0.0000  0.1383  0.0411  1
  Se  Se6  8  0.0000  0.4141  0.1258  1
]