data_[Rb16Hg4O2]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [22.5744]
_cell_length_b [6.9200]
_cell_length_c [8.1301]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.0026]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb8Hg2O]
_chemical_formula_sum '[Rb16 Hg4 O2]'
_cell_volume [1185.6626]
_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  4  0.0053  0.0000  0.2432  1.0
  Rb  Rb1  4  0.0852  0.5000  0.8384  1.0
  Rb  Rb2  4  0.1034  0.5000  0.3015  1.0
  Rb  Rb3  4  0.2277  0.0000  0.2046  1.0
  Hg  Hg4  4  0.1625  0.0000  0.6594  1.0
  O  O5  2  0.0000  0.5000  0.0000  1.0
]