data_[Bi8Se4S6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.3703]
_cell_length_b [3.9836]
_cell_length_c [13.3607]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.6719]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Bi4Se2S3]
_chemical_formula_sum '[Bi8 Se4 S6]'
_cell_volume [536.3069]
_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
[
  Bi  Bi0  4  0.0310  0.0000  0.6257  1
  Bi  Bi1  4  0.1057  0.5000  0.1519  1
  Se  Se2  4  0.1881  0.5000  0.7968  1
  S  S3  4  0.1457  0.5000  0.3741  1
  S  S4  2  0.0000  0.0000  0.0000  1
]