data_[Pm6Sm8S16]
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
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.3503]
_cell_length_b [11.3516]
_cell_length_c [8.0233]
_cell_angle_alpha [90.0000]
_cell_angle_beta [134.9715]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3(SmS2)4]
_chemical_formula_sum '[Pm6 Sm8 S16]'
_cell_volume [731.3364]
_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  0.2500  0.2500  0.5000  1
  Pm  Pm1  2  0.0000  0.5000  0.5000  1
  Sm  Sm2  4  0.2500  0.2500  0.0000  1
  Sm  Sm3  2  0.0000  0.0000  0.0000  1
  Sm  Sm4  2  0.0000  0.0000  0.5000  1
  S  S5  4  0.0000  0.2493  0.5000  1
  S  S6  4  0.0000  0.2497  0.0000  1
  S  S7  4  0.2489  0.0000  0.4993  1
  S  S8  4  0.2491  0.0000  0.9986  1
]