data_[Rb4B4Br4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  B  2.0400  0.8500  0.4100
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.8290]
_cell_length_b [3.3986]
_cell_length_c [8.3997]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.2776]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbBBr]
_chemical_formula_sum '[Rb4 B4 Br4]'
_cell_volume [316.7527]
_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  0.0737  0.0000  0.7424  1
  B  B1  4  0.2459  0.0000  0.4765  1
  Br  Br2  4  0.1766  0.0000  0.1839  1
]