data_[Ge2I8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ge  2.0100  1.2500  0.7700
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Pc]
_cell_length_a [7.3119]
_cell_length_b [19.4520]
_cell_length_c [13.3612]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.9188]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [7]
_chemical_formula_structural [GeI4]
_chemical_formula_sum '[Ge2 I8]'
_cell_volume [1630.3233]
_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
[
  Ge  Ge0  2  0.5932  0.4588  0.4494  1
  I  I1  2  0.3186  0.3856  0.2816  1
  I  I2  2  0.5069  0.4143  0.8987  1
  I  I3  2  0.5811  0.4330  0.6332  1
  I  I4  2  0.9643  0.4333  0.4867  1
]