data_[Rb8Mg4Ag4Br20]
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
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.3085]
_cell_length_b [20.5020]
_cell_length_c [14.0827]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Rb2MgAgBr5]
_chemical_formula_sum '[Rb8 Mg4 Ag4 Br20]'
_cell_volume [1243.9733]
_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  0.1172  0.6931  1.0
  Rb  Rb1  4  0.0000  0.1305  0.3105  1.0
  Mg  Mg2  4  0.0000  0.2122  0.0208  1.0
  Ag  Ag3  4  0.0000  0.4402  0.4358  1.0
  Br  Br4  4  0.0000  0.0821  0.0472  1.0
  Br  Br5  4  0.0000  0.2834  0.6493  1.0
  Br  Br6  4  0.0000  0.2993  0.3878  1.0
  Br  Br7  4  0.0000  0.3395  0.0050  1.0
  Br  Br8  4  0.0000  0.4987  0.7744  1.0
]