data_[K4Rb4Ge4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [6.3391]
_cell_length_b [12.1911]
_cell_length_c [5.5144]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.6972]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KRbGeO3]
_chemical_formula_sum '[K4 Rb4 Ge4 O12]'
_cell_volume [418.7491]
_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
[
  Rb  Rb0  4  0.0000  0.2454  0.2500  1.0
  K  K1  4  0.0000  0.4083  0.7500  1.0
  Ge  Ge2  4  0.0000  0.0466  0.7500  1.0
  O  O3  8  0.1882  0.0298  0.4835  1.0
  O  O4  4  0.0000  0.1913  0.7500  1.0
]