data_[Hg4Pt4Se4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hg  2.0000  1.5000  1.2450
  Pt  2.2800  1.3500  0.8050
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pbcm]
_cell_length_a [9.1635]
_cell_length_b [6.5697]
_cell_length_c [4.8344]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [57]
_chemical_formula_structural [HgPtSeO]
_chemical_formula_sum '[Hg4 Pt4 Se4 O4]'
_cell_volume [291.0374]
_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
[
  Hg  Hg0  4  0.0892  0.1255  0.2500  1
  Pt  Pt1  4  0.3592  0.6060  0.2500  1
  Se  Se2  4  0.3766  0.0135  0.2500  1
  O  O3  4  0.1427  0.5127  0.2500  1
]