data_[Na8Sr4Ag4Br20]
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
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.4175]
_cell_length_b [18.7286]
_cell_length_c [15.3999]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Na2SrAgBr5]
_chemical_formula_sum '[Na8 Sr4 Ag4 Br20]'
_cell_volume [1274.0832]
_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  0.0398  0.3965  1.0
  Na  Na1  4  0.0000  0.0627  0.6554  1.0
  Sr  Sr2  4  0.0000  0.2661  0.0263  1.0
  Ag  Ag3  4  0.0000  0.3712  0.3973  1.0
  Br  Br4  4  0.0000  0.1038  0.0019  1.0
  Br  Br5  4  0.0000  0.2190  0.6593  1.0
  Br  Br6  4  0.0000  0.2260  0.3862  1.0
  Br  Br7  4  0.0000  0.4266  0.0207  1.0
  Br  Br8  4  0.0000  0.4796  0.2802  1.0
]