data_[Ge8O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cc]
_cell_length_a [5.2033]
_cell_length_b [9.0368]
_cell_length_c [8.6395]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.3507]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [9]
_chemical_formula_structural [GeO2]
_chemical_formula_sum '[Ge8 O16]'
_cell_volume [406.1300]
_cell_formula_units_Z [8]
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  4  0.4263  0.1238  0.1623  1.0
  Ge  Ge1  4  0.4305  0.2153  0.7886  1.0
  O  O2  4  0.2576  0.3679  0.7104  1.0
  O  O3  4  0.2590  0.2353  0.2959  1.0
  O  O4  4  0.3263  0.1860  0.9781  1.0
  O  O5  4  0.3434  0.0654  0.6671  1.0
]