data_[Rb2As2Pb2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  As  2.1800  1.1500  0.6600
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.4372]
_cell_length_b [6.1071]
_cell_length_c [7.9109]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.6296]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbAsPbO4]
_chemical_formula_sum '[Rb2 As2 Pb2 O8]'
_cell_volume [289.1034]
_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  0.3054  0.7500  0.0439  1.0
  As  As1  2  0.2664  0.2500  0.3081  1.0
  Pb  Pb2  2  0.2070  0.7500  0.4952  1.0
  O  O3  4  0.0940  0.0220  0.2642  1.0
  O  O4  2  0.4356  0.2500  0.1841  1.0
  O  O5  2  0.4425  0.2500  0.5369  1.0
]