data_[Rb12Hg2O4]
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 [14.2936]
_cell_length_b [5.7545]
_cell_length_c [10.7572]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.6322]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb6HgO2]
_chemical_formula_sum '[Rb12 Hg2 O4]'
_cell_volume [797.7314]
_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  0.0128  0.0000  0.1665  1.0
  Rb  Rb1  4  0.1969  0.5000  0.6526  1.0
  Rb  Rb2  4  0.2006  0.5000  0.0559  1.0
  Hg  Hg3  2  0.0000  0.0000  0.5000  1.0
  O  O4  4  0.1659  0.0000  0.0780  1.0
]