data_[Na4Pt4Se4O20]
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
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.8157]
_cell_length_b [9.3169]
_cell_length_c [6.7753]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.4291]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaPtSeO5]
_chemical_formula_sum '[Na4 Pt4 Se4 O20]'
_cell_volume [488.0376]
_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  4  0.0000  0.3654  0.2500  1.0
  Pt  Pt1  4  0.0000  0.0000  0.0000  1.0
  Se  Se2  4  0.0000  0.2806  0.7500  1.0
  O  O3  8  0.1099  0.3807  0.9252  1.0
  O  O4  8  0.1377  0.1667  0.6434  1.0
  O  O5  4  0.0000  0.0975  0.2500  1.0
]