data_[K4Na4Cr4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [5.7736]
_cell_length_b [11.0539]
_cell_length_c [5.4725]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.6124]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KNaCrO3]
_chemical_formula_sum '[K4 Na4 Cr4 O12]'
_cell_volume [343.2848]
_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
[
  K  K0  4  0.0000  0.2604  0.7500  1.0
  Na  Na1  4  0.0000  0.4196  0.2500  1.0
  Cr  Cr2  4  0.0000  0.0491  0.2500  1.0
  O  O3  8  0.2092  0.0334  0.9876  1.0
  O  O4  4  0.0000  0.2093  0.2500  1.0
]