data_[Cu2W2Br4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  W  2.3600  1.3500  0.7667
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.0679]
_cell_length_b [4.7706]
_cell_length_c [12.5435]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [CuWBr2]
_chemical_formula_sum '[Cu2 W2 Br4]'
_cell_volume [183.5824]
_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
[
  Cu  Cu0  2  0.0000  0.0000  0.5880  1
  W  W1  2  0.0000  0.5000  0.2565  1
  Br  Br2  2  0.0000  0.0000  0.9273  1
  Br  Br3  2  0.0000  0.5000  0.7282  1
]