data_[Rb8Pb2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.8280]
_cell_length_b [6.8348]
_cell_length_c [10.1591]
_cell_angle_alpha [78.8088]
_cell_angle_beta [71.3255]
_cell_angle_gamma [66.9078]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Rb4PbO4]
_chemical_formula_sum '[Rb8 Pb2 O8]'
_cell_volume [411.8805]
_cell_formula_units_Z [2]
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  2  0.0325  0.7856  0.3779  1
  Rb  Rb1  2  0.2405  0.7622  0.9666  1
  Rb  Rb2  2  0.4089  0.2567  0.8341  1
  Rb  Rb3  2  0.4921  0.7213  0.5620  1
  Pb  Pb4  2  0.1526  0.2784  0.2460  1
  O  O5  2  0.1617  0.1172  0.0879  1
  O  O6  2  0.1636  0.5347  0.6414  1
  O  O7  2  0.3072  0.0259  0.3780  1
  O  O8  2  0.3441  0.4747  0.1882  1
]