data_[Rb12Ge4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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/m]
_cell_length_a [13.1164]
_cell_length_b [4.1480]
_cell_length_c [13.4437]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.8017]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb3GeO]
_chemical_formula_sum '[Rb12 Ge4 O4]'
_cell_volume [679.1047]
_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  0.0633  0.5000  0.1449  1
  Rb  Rb1  4  0.1352  0.0000  0.4299  1
  Rb  Rb2  4  0.1824  0.5000  0.7202  1
  Ge  Ge3  4  0.1930  0.0000  0.9686  1
  O  O4  4  0.2182  0.5000  0.3486  1
]