data_[Rb2Mg4Bi2Br16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Mg  1.3100  1.5000  0.8600
  Bi  2.0200  1.6000  1.0350
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.0191]
_cell_length_b [8.6026]
_cell_length_c [9.6860]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.0029]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbMg2BiBr8]
_chemical_formula_sum '[Rb2 Mg4 Bi2 Br16]'
_cell_volume [878.0329]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.5000  1.0
  Mg  Mg1  4  0.0501  0.5000  0.7143  1.0
  Bi  Bi2  2  0.0000  0.0000  0.0000  1.0
  Br  Br3  8  0.0443  0.2333  0.2286  1.0
  Br  Br4  4  0.1658  0.5000  0.5219  1.0
  Br  Br5  4  0.2315  0.5000  0.9622  1.0
]