data_[K4Ge4Te4O20]
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
  Te  2.1000  1.4000  1.2933
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.2351]
_cell_length_b [9.4601]
_cell_length_c [7.6771]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.1926]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KGeTeO5]
_chemical_formula_sum '[K4 Ge4 Te4 O20]'
_cell_volume [471.5026]
_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  0.0000  0.3337  0.2500  1.0
  Ge  Ge1  4  0.0000  0.3094  0.7500  1.0
  Te  Te2  4  0.0000  0.0000  0.0000  1.0
  O  O3  8  0.0937  0.2039  0.6112  1.0
  O  O4  8  0.1972  0.4264  0.9112  1.0
  O  O5  4  0.0000  0.0590  0.2500  1.0
]