data_[K4Sr2Cr2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sr  0.9500  2.0000  1.3200
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [7.2253]
_cell_length_b [7.2895]
_cell_length_c [6.0139]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [K2SrCrO4]
_chemical_formula_sum '[K4 Sr2 Cr2 O8]'
_cell_volume [316.7455]
_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
[
  K  K0  4  0.2384  0.3443  0.0183  1
  Sr  Sr1  2  0.0000  0.1157  0.5063  1
  Cr  Cr2  2  0.0000  0.8280  0.9984  1
  O  O3  4  0.2126  0.7096  0.0786  1
  O  O4  2  0.0000  0.0617  0.1032  1
  O  O5  2  0.0000  0.8357  0.6984  1
]