data_[Rb4Se4Br12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Se  2.5500  1.1500  1.0133
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [9.0243]
_cell_length_b [16.1726]
_cell_length_c [5.9003]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [RbSeBr3]
_chemical_formula_sum '[Rb4 Se4 Br12]'
_cell_volume [861.1318]
_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  0.0000  0.5000  1.0
  Se  Se1  4  0.1564  0.7500  0.0135  1.0
  Br  Br2  8  0.1481  0.5891  0.9960  1.0
  Br  Br3  4  0.0972  0.2500  0.7330  1.0
]