data_[Rb4Ba4Na4Br16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ba  0.8900  2.1500  1.4900
  Na  0.9300  1.8000  1.1600
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [7.6017]
_cell_length_b [17.1427]
_cell_length_c [7.8680]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbBaNaBr4]
_chemical_formula_sum '[Rb4 Ba4 Na4 Br16]'
_cell_volume [1025.3085]
_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  0.3910  0.2500  1.0
  Ba  Ba1  4  0.0000  0.1257  0.2500  1.0
  Na  Na2  4  0.0000  0.2478  0.7500  1.0
  Br  Br3  8  0.2500  0.2500  0.0000  1.0
  Br  Br4  4  0.0000  0.0617  0.7500  1.0
  Br  Br5  4  0.0000  0.4186  0.7500  1.0
]