data_[Na4Cr2Cl8]
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
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [4.0385]
_cell_length_b [11.6283]
_cell_length_c [7.0166]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.8146]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Na2CrCl4]
_chemical_formula_sum '[Na4 Cr2 Cl8]'
_cell_volume [328.7752]
_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  0.4832  0.6803  0.0939  1.0
  Cr  Cr1  2  0.0000  0.0000  0.0000  1.0
  Cl  Cl2  4  0.0081  0.1935  0.1154  1.0
  Cl  Cl3  4  0.4332  0.5470  0.7402  1.0
]