data_[Pm8Ga4Cu4S20]
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
  Cu  1.9000  1.3500  0.8200
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.8678]
_cell_length_b [17.1743]
_cell_length_c [11.3213]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Pm2GaCuS5]
_chemical_formula_sum '[Pm8 Ga4 Cu4 S20]'
_cell_volume [752.0358]
_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  0.1139  0.6774  1
  Pm  Pm1  4  0.0000  0.1315  0.2953  1
  Ga  Ga2  4  0.0000  0.4241  0.4523  1
  Cu  Cu3  4  0.0000  0.2467  0.0795  1
  S  S4  4  0.0000  0.0440  0.0589  1
  S  S5  4  0.0000  0.2941  0.6553  1
  S  S6  4  0.0000  0.3163  0.3354  1
  S  S7  4  0.0000  0.3616  0.9899  1
  S  S8  4  0.0000  0.4992  0.7801  1
]