data_[Na8Ga4Te4Se20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ga  1.8100  1.3000  0.7600
  Te  2.1000  1.4000  1.2933
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.9512]
_cell_length_b [19.6268]
_cell_length_c [12.4283]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Na2GaTeSe5]
_chemical_formula_sum '[Na8 Ga4 Te4 Se20]'
_cell_volume [963.8166]
_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
[
  Na  Na0  4  0.0000  0.0700  0.6351  1.0
  Na  Na1  4  0.0000  0.1009  0.2990  1.0
  Ga  Ga2  4  0.0000  0.4075  0.4393  1.0
  Te  Te3  4  0.0000  0.2601  0.0450  1.0
  Se  Se4  4  0.0000  0.0836  0.0577  1.0
  Se  Se5  4  0.0000  0.2293  0.7073  1.0
  Se  Se6  4  0.0000  0.2835  0.3770  1.0
  Se  Se7  4  0.0000  0.3807  0.9721  1.0
  Se  Se8  4  0.0000  0.4829  0.2914  1.0
]