data_[K8Ge4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [8.0481]
_cell_length_b [9.4656]
_cell_length_c [6.7814]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.1232]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [K2GeO2]
_chemical_formula_sum '[K8 Ge4 O8]'
_cell_volume [485.0771]
_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
[
  K  K0  4  0.0109  0.2462  0.5514  1.0
  K  K1  4  0.4336  0.6728  0.0400  1.0
  Ge  Ge2  4  0.3116  0.0214  0.9190  1.0
  O  O3  4  0.2075  0.6361  0.2807  1.0
  O  O4  4  0.4879  0.5494  0.6759  1.0
]