data_[Zr4Ge4Br2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zr  1.3300  1.5500  0.8600
  Ge  2.0100  1.2500  0.7700
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [3.7657]
_cell_length_b [3.7657]
_cell_length_c [14.7915]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Zr2Ge2Br]
_chemical_formula_sum '[Zr4 Ge4 Br2]'
_cell_volume [209.7467]
_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
[
  Zr  Zr0  4  0.0000  0.0000  0.3892  1
  Ge  Ge1  4  0.0000  0.5000  0.2500  1
  Br  Br2  2  0.0000  0.0000  0.0000  1
]