data_[Na8Cr6Pt2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cr  1.6600  1.4000  0.9400
  Pt  2.2800  1.3500  0.8050
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.8945]
_cell_length_b [6.1037]
_cell_length_c [6.4005]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.8385]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na4Cr3PtO8]
_chemical_formula_sum '[Na8 Cr6 Pt2 O16]'
_cell_volume [357.5984]
_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  4  0.2500  0.2500  0.0000  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Na  Na2  2  0.0000  0.5000  0.0000  1.0
  Cr  Cr3  4  0.2500  0.2500  0.5000  1.0
  Cr  Cr4  2  0.0000  0.5000  0.5000  1.0
  Pt  Pt5  2  0.0000  0.0000  0.5000  1.0
  O  O6  8  0.0232  0.2530  0.3058  1.0
  O  O7  4  0.2287  0.5000  0.6972  1.0
  O  O8  4  0.2417  0.5000  0.2828  1.0
]