data_[Na4Li4Be4Br16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Li  0.9800  1.4500  0.9000
  Be  1.5700  1.0500  0.5900
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.6930]
_cell_length_b [7.9955]
_cell_length_c [11.1241]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [NaLiBeBr4]
_chemical_formula_sum '[Na4 Li4 Be4 Br16]'
_cell_volume [684.2347]
_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  0.2500  0.2500  0.7500  1
  Li  Li1  4  0.0000  0.0000  0.5000  1
  Be  Be2  4  0.0000  0.2500  0.1280  1
  Br  Br3  8  0.0000  0.0249  0.2450  1
  Br  Br4  8  0.2396  0.2500  0.0124  1
]