data_[Na8Cr2O8]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.7581]
_cell_length_b [5.7671]
_cell_length_c [8.7409]
_cell_angle_alpha [81.5421]
_cell_angle_beta [71.3462]
_cell_angle_gamma [68.4427]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na4CrO4]
_chemical_formula_sum '[Na8 Cr2 O8]'
_cell_volume [255.6350]
_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  2  0.0538  0.7562  0.3999  1.0
  Na  Na1  2  0.2420  0.7548  0.9884  1.0
  Na  Na2  2  0.3908  0.2704  0.8171  1.0
  Na  Na3  2  0.4791  0.7355  0.5671  1.0
  Cr  Cr4  2  0.1566  0.2790  0.2420  1.0
  O  O5  2  0.1489  0.1562  0.0680  1.0
  O  O6  2  0.1633  0.5289  0.6382  1.0
  O  O7  2  0.2961  0.0268  0.3749  1.0
  O  O8  2  0.3624  0.4711  0.1963  1.0
]