data_[Mg2Hg2Pt4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Hg  2.0000  1.5000  1.2450
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [9.8300]
_cell_length_b [3.0235]
_cell_length_c [4.8132]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.0286]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [MgHgPt2]
_chemical_formula_sum '[Mg2 Hg2 Pt4]'
_cell_volume [139.3733]
_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
[
  Mg  Mg0  2  0.2623  0.0000  0.7912  1
  Hg  Hg1  2  0.4903  0.0000  0.4669  1
  Pt  Pt2  2  0.0064  0.0000  0.9702  1
  Pt  Pt3  2  0.2409  0.5000  0.2717  1
]