data_[Na2Sr2Bi2S6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Bi  2.0200  1.6000  1.0350
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.2989]
_cell_length_b [4.1516]
_cell_length_c [10.2565]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.3029]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaSrBiS3]
_chemical_formula_sum '[Na2 Sr2 Bi2 S6]'
_cell_volume [310.7917]
_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
[
  Na  Na0  2  0.2452  0.2500  0.0066  1.0
  Sr  Sr1  2  0.4160  0.7500  0.6729  1.0
  Bi  Bi2  2  0.0949  0.7500  0.3186  1.0
  S  S3  2  0.0703  0.7500  0.8242  1.0
  S  S4  2  0.2461  0.2500  0.4946  1.0
  S  S5  2  0.3970  0.7500  0.1714  1.0
]