data_[Hg2Pb4Br2Cl2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hg  2.0000  1.5000  1.2450
  Pb  2.3300  1.8000  1.1225
  Br  2.9600  1.1500  0.8825
  Cl  3.1600  1.0000  0.7800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [11.9739]
_cell_length_b [3.9785]
_cell_length_c [7.9450]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.5066]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [HgPb2BrClO2]
_chemical_formula_sum '[Hg2 Pb4 Br2 Cl2 O4]'
_cell_volume [319.1873]
_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
[
  Hg  Hg0  2  0.0021  0.0000  0.0074  1
  Pb  Pb1  2  0.1835  0.0000  0.7558  1
  Pb  Pb2  2  0.3174  0.5000  0.2419  1
  Br  Br3  2  0.4290  0.0000  0.6578  1
  Cl  Cl4  2  0.0672  0.5000  0.3363  1
  O  O5  2  0.1940  0.0000  0.0671  1
  O  O6  2  0.3067  0.5000  0.9337  1
]