data_[Na9Cr3Ag9Br24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cr  1.6600  1.4000  0.9400
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [8.3425]
_cell_length_b [8.3425]
_cell_length_c [20.4505]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Na3CrAg3Br8]
_chemical_formula_sum '[Na9 Cr3 Ag9 Br24]'
_cell_volume [1232.6032]
_cell_formula_units_Z [3]
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  9  0.0000  0.5000  0.5000  1
  Cr  Cr1  3  -0.0000  -0.0000  0.0000  1
  Ag  Ag2  9  0.0000  0.5000  0.0000  1
  Br  Br3  18  0.0259  0.5130  0.7412  1
  Br  Br4  6  0.0000  0.0000  0.2535  1
]