data_[Cr12W20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cr  1.6600  1.4000  0.9400
  W  2.3600  1.3500  0.7667
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [6.1688]
_cell_length_b [8.7287]
_cell_length_c [8.7198]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Cr3W5]
_chemical_formula_sum '[Cr12 W20]'
_cell_volume [469.5219]
_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
[
  Cr  Cr0  4  0.2554  0.0000  0.7507  1.0
  Cr  Cr1  4  0.5000  0.2472  0.7508  1.0
  Cr  Cr2  2  0.0000  0.0000  0.5013  1.0
  Cr  Cr3  2  0.5000  0.0000  0.9947  1.0
  W  W4  8  0.2555  0.2495  0.9998  1.0
  W  W5  4  0.0000  0.2436  0.7489  1.0
  W  W6  4  0.2550  0.0000  0.2503  1.0
  W  W7  2  0.0000  0.0000  0.9953  1.0
  W  W8  2  0.5000  0.0000  0.5081  1.0
]