data_[Rb3Na3Br6]
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
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [4.5051]
_cell_length_b [4.5051]
_cell_length_c [23.6288]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [RbNaBr2]
_chemical_formula_sum '[Rb3 Na3 Br6]'
_cell_volume [415.3210]
_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
[
  Rb  Rb0  3  0.0000  0.0000  0.4987  1.0
  Na  Na1  3  0.0000  0.0000  0.6681  1.0
  Br  Br2  3  0.0000  0.0000  0.0709  1.0
  Br  Br3  3  0.0000  0.0000  0.2623  1.0
]