data_[Na8Be2Te4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Be  1.5700  1.0500  0.5900
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [5.1013]
_cell_length_b [5.1013]
_cell_length_c [16.3534]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Na4BeTe2]
_chemical_formula_sum '[Na8 Be2 Te4]'
_cell_volume [425.5752]
_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
[
  Na  Na0  4  0.0000  0.0000  0.1859  1
  Na  Na1  4  0.0000  0.5000  0.0000  1
  Be  Be2  2  0.0000  0.0000  0.0000  1
  Te  Te3  4  0.0000  0.0000  0.3734  1
]