data_[Li1Ta1Se1Br2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Ta  1.5000  1.4500  0.8200
  Se  2.5500  1.1500  1.0133
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [5.2373]
_cell_length_b [5.2373]
_cell_length_c [5.0458]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [LiTaSeBr2]
_chemical_formula_sum '[Li1 Ta1 Se1 Br2]'
_cell_volume [138.4022]
_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
[
  Li  Li0  1  0.5000  0.5000  0.5000  1
  Ta  Ta1  1  0.0000  0.0000  0.0000  1
  Se  Se2  1  0.0000  0.0000  0.5000  1
  Br  Br3  2  0.0000  0.5000  0.0000  1
]