data_[Na12Sn4Pt2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.6610]
_cell_length_b [15.8631]
_cell_length_c [3.8044]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.8230]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na6Sn2Pt]
_chemical_formula_sum '[Na12 Sn4 Pt2]'
_cell_volume [500.3217]
_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
[
  Na  Na0  8  0.1876  0.3281  0.7682  1.0
  Na  Na1  4  0.2005  0.5000  0.2944  1.0
  Sn  Sn2  4  0.0000  0.1272  0.5000  1.0
  Pt  Pt3  2  0.0000  0.0000  0.0000  1.0
]