data_[Cs8Hg4O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  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 [18.3078]
_cell_length_b [4.5838]
_cell_length_c [7.8643]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.8505]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cs4Hg2O]
_chemical_formula_sum '[Cs8 Hg4 O2]'
_cell_volume [659.8912]
_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
[
  Cs  Cs0  4  0.0431  0.5000  0.2320  1
  Cs  Cs1  4  0.1448  0.0000  0.8726  1
  Hg  Hg2  4  0.2176  0.0000  0.3913  1
  O  O3  2  0.0000  0.0000  0.0000  1
]