data_[Na8Pt8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [I-43m]
_cell_length_a [8.8247]
_cell_length_b [8.8247]
_cell_length_c [8.8247]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [217]
_chemical_formula_structural [NaPt]
_chemical_formula_sum '[Na8 Pt8]'
_cell_volume [687.2284]
_cell_formula_units_Z [8]
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  0.2028  0.2028  0.2028  1
  Pt  Pt1  8  0.1059  0.8941  0.1059  1
]