data_[Na8Ag4Sn4Br20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.3072]
_cell_length_b [18.9032]
_cell_length_c [14.8446]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Na2AgSnBr5]
_chemical_formula_sum '[Na8 Ag4 Sn4 Br20]'
_cell_volume [1208.6462]
_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
[
  Na  Na0  4  0.0000  0.0586  0.6698  1
  Na  Na1  4  0.0000  0.1323  0.2485  1
  Ag  Ag2  4  0.0000  0.4864  0.4526  1
  Sn  Sn3  4  0.0000  0.2386  0.0221  1
  Br  Br4  4  0.0000  0.0698  0.0398  1
  Br  Br5  4  0.0000  0.2467  0.3876  1
  Br  Br6  4  0.0000  0.2724  0.6685  1
  Br  Br7  4  0.0000  0.3876  0.0569  1
  Br  Br8  4  0.0000  0.4814  0.7782  1
]