data_[Mg20Sn4Pt4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Sn  1.9600  1.4500  0.8300
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [12.4348]
_cell_length_b [7.8258]
_cell_length_c [10.0507]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.4997]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Mg5SnPt]
_chemical_formula_sum '[Mg20 Sn4 Pt4]'
_cell_volume [815.5949]
_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
[
  Mg  Mg0  8  0.0266  0.3153  0.4602  1
  Mg  Mg1  8  0.2434  0.0153  0.1501  1
  Mg  Mg2  4  0.0000  0.0152  0.7500  1
  Sn  Sn3  4  0.0000  0.3958  0.7500  1
  Pt  Pt4  4  0.0000  0.0000  0.0000  1
]