data_[U4Hg2Pt4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  U  1.3800  1.7500  0.9913
  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 [7.8796]
_cell_length_b [7.8796]
_cell_length_c [3.5585]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [U2HgPt2]
_chemical_formula_sum '[U4 Hg2 Pt4]'
_cell_volume [220.9422]
_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
[
  U  U0  4  0.1678  0.6678  0.5000  1
  Hg  Hg1  2  0.0000  0.0000  0.0000  1
  Pt  Pt2  4  0.1322  0.3678  0.0000  1
]