data_[Rb8Hg8Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Hg  2.0000  1.5000  1.2450
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.5492]
_cell_length_b [5.1585]
_cell_length_c [13.9371]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.1504]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Hg2Bi]
_chemical_formula_sum '[Rb8 Hg8 Bi4]'
_cell_volume [888.8598]
_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  0.1054  0.5000  0.8953  1.0
  Rb  Rb1  4  0.1987  0.0000  0.6227  1.0
  Hg  Hg2  4  0.0285  0.5000  0.4085  1.0
  Hg  Hg3  4  0.1155  0.0000  0.1102  1.0
  Bi  Bi4  4  0.0564  0.0000  0.3087  1.0
]