data_[Na4Ni4Pt2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ni  1.9100  1.3500  0.7400
  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 [5.3192]
_cell_length_b [9.0278]
_cell_length_c [5.7389]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.7828]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Ni2PtO6]
_chemical_formula_sum '[Na4 Ni4 Pt2 O12]'
_cell_volume [260.9092]
_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  0.0000  0.1715  0.0000  1.0
  Ni  Ni1  4  0.0000  0.3351  0.5000  1.0
  Pt  Pt2  2  0.0000  0.0000  0.5000  1.0
  O  O3  8  0.2247  0.1663  0.6920  1.0
  O  O4  4  0.2422  0.5000  0.6906  1.0
]