data_[Mg1W2Br1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  W  2.3600  1.3500  0.7667
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.2511]
_cell_length_b [3.2511]
_cell_length_c [8.1714]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [MgW2Br]
_chemical_formula_sum '[Mg1 W2 Br1]'
_cell_volume [86.3666]
_cell_formula_units_Z [1]
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
[
  Mg  Mg0  1  0.5000  0.5000  0.7685  1
  W  W1  1  0.0000  0.0000  0.0059  1
  W  W2  1  0.5000  0.5000  0.1569  1
  Br  Br3  1  0.0000  0.0000  0.5687  1
]