data_[Ti2Be2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ti  1.5400  1.4000  0.8517
  Be  1.5700  1.0500  0.5900
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [18.3812]
_cell_length_b [3.5454]
_cell_length_c [13.1836]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [TiBeSe3]
_chemical_formula_sum '[Ti2 Be2 Se6]'
_cell_volume [859.1495]
_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
[
  Ti  Ti0  2  0.5000  0.0000  0.3695  1
  Be  Be1  2  0.5000  0.0000  0.7031  1
  Se  Se2  4  0.4080  0.0000  0.8033  1
  Se  Se3  2  0.5000  0.0000  0.5432  1
]