data_[Rb16Hg2O4]
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 [14.7974]
_cell_length_b [12.2325]
_cell_length_c [8.1084]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.0386]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb8HgO2]
_chemical_formula_sum '[Rb16 Hg2 O4]'
_cell_volume [1462.0288]
_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  8  0.1364  0.1715  0.7249  1.0
  Rb  Rb1  4  0.1197  0.5000  0.2396  1.0
  Rb  Rb2  4  0.2054  0.0000  0.3174  1.0
  Hg  Hg3  2  0.0000  0.0000  0.0000  1.0
  O  O4  4  0.2183  0.0000  0.6326  1.0
]