data_[Rb8Na4Sr4Br20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.6785]
_cell_length_b [19.5229]
_cell_length_c [15.2064]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Rb2NaSrBr5]
_chemical_formula_sum '[Rb8 Na4 Sr4 Br20]'
_cell_volume [1388.9168]
_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
[
  Rb  Rb0  4  0.0000  0.0938  0.6701  1.0
  Rb  Rb1  4  0.0000  0.1319  0.3027  1.0
  Na  Na2  4  0.0000  0.4688  0.4552  1.0
  Sr  Sr3  4  0.0000  0.2171  0.0210  1.0
  Br  Br4  4  0.0000  0.0633  0.0536  1.0
  Br  Br5  4  0.0000  0.2725  0.6580  1.0
  Br  Br6  4  0.0000  0.3049  0.3916  1.0
  Br  Br7  4  0.0000  0.3721  0.9953  1.0
  Br  Br8  4  0.0000  0.4973  0.7765  1.0
]