data_[Ti4Bi4Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ti  1.5400  1.4000  0.8517
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.7988]
_cell_length_b [21.4772]
_cell_length_c [4.9539]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [TiBiSe2]
_chemical_formula_sum '[Ti4 Bi4 Se8]'
_cell_volume [404.1747]
_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
[
  Ti  Ti0  4  0.0000  0.0526  0.7500  1
  Bi  Bi1  4  0.0000  0.3200  0.7500  1
  Se  Se2  4  0.0000  0.0637  0.2500  1
  Se  Se3  4  0.0000  0.1821  0.7500  1
]