data_[Ba4Hg2Pt4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Hg  2.0000  1.5000  1.2450
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [8.9853]
_cell_length_b [8.9853]
_cell_length_c [3.9253]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Ba2HgPt2]
_chemical_formula_sum '[Ba4 Hg2 Pt4]'
_cell_volume [316.9158]
_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
[
  Ba  Ba0  4  0.1515  0.3485  0.0000  1
  Hg  Hg1  2  0.0000  0.0000  0.0000  1
  Pt  Pt2  4  0.1402  0.6402  0.5000  1
]