data_[Be4Ag2Br2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.2808]
_cell_length_b [3.2931]
_cell_length_c [14.6970]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Be2AgBr]
_chemical_formula_sum '[Be4 Ag2 Br2]'
_cell_volume [158.7849]
_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
[
  Be  Be0  2  0.0000  0.0000  0.0762  1
  Be  Be1  2  0.0000  0.5000  0.7134  1
  Ag  Ag2  2  0.0000  0.5000  0.2127  1
  Br  Br3  2  0.0000  0.0000  0.4976  1
]