data_[Na4Pt2C4O12]
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
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.7833]
_cell_length_b [5.0109]
_cell_length_c [5.8281]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.3544]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Pt(CO3)2]
_chemical_formula_sum '[Na4 Pt2 C4 O12]'
_cell_volume [277.1356]
_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  0.2052  0.5000  0.2141  1.0
  Pt  Pt1  2  0.0000  0.5000  0.5000  1.0
  C  C2  4  0.0068  0.0000  0.7482  1.0
  O  O3  8  0.0838  0.2207  0.7899  1.0
  O  O4  4  0.1225  0.0000  0.3231  1.0
]