data_[Zn4Hg4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zn  1.6500  1.3500  0.8800
  Hg  2.0000  1.5000  1.2450
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pna2_1]
_cell_length_a [6.1347]
_cell_length_b [7.0180]
_cell_length_c [6.4106]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [33]
_chemical_formula_structural [ZnHgO2]
_chemical_formula_sum '[Zn4 Hg4 O8]'
_cell_volume [275.9998]
_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
[
  Zn  Zn0  4  0.0634  0.1202  0.5208  1
  Hg  Hg1  4  0.0277  0.3724  0.9124  1
  O  O2  4  0.0057  0.0895  0.8298  1
  O  O3  4  0.1119  0.6461  0.9871  1
]