data_[Ag8Hg4I8O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
  I  2.6600  1.4000  1.2733
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [13.3714]
_cell_length_b [7.4115]
_cell_length_c [6.9288]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Ag2HgI2O]
_chemical_formula_sum '[Ag8 Hg4 I8 O4]'
_cell_volume [686.6555]
_cell_formula_units_Z [4]
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
[
  Ag  Ag0  8  0.1484  0.3310  0.7458  1
  Hg  Hg1  4  0.0000  0.0165  0.0702  1
  I  I2  8  0.1550  0.2966  0.3271  1
  O  O3  4  0.0000  0.1596  0.8098  1
]