data_[K8Cr4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.1065]
_cell_length_b [7.7639]
_cell_length_c [11.8870]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.7477]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [K2CrO4]
_chemical_formula_sum '[K8 Cr4 O16]'
_cell_volume [498.7552]
_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  0.1892  0.6692  0.9225  1
  K  K1  4  0.4773  0.5042  0.7024  1
  Cr  Cr2  4  0.1631  0.2273  0.9206  1
  O  O3  4  0.1388  0.7323  0.1668  1
  O  O4  4  0.2130  0.0163  0.9279  1
  O  O5  4  0.2608  0.1936  0.5670  1
  O  O6  4  0.3227  0.1772  0.3561  1
]