data_[Na4Si8Pt12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Si  1.9000  1.1000  0.5400
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [7.0242]
_cell_length_b [9.9410]
_cell_length_c [5.8552]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [NaSi2Pt3]
_chemical_formula_sum '[Na4 Si8 Pt12]'
_cell_volume [408.8518]
_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
[
  Na  Na0  2  0.0000  0.0000  0.0428  1.0
  Na  Na1  2  0.0000  0.5000  0.4844  1.0
  Si  Si2  4  0.0000  0.1566  0.5554  1.0
  Si  Si3  4  0.0000  0.3122  0.9323  1.0
  Pt  Pt4  8  0.2036  0.2509  0.2530  1.0
  Pt  Pt5  4  0.2217  0.5000  0.0018  1.0
]