data_[Rb2P2Pb2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  P  2.1900  1.0000  0.5500
  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 [6.1984]
_cell_length_b [5.8219]
_cell_length_c [7.7959]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.9128]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbPPbO4]
_chemical_formula_sum '[Rb2 P2 Pb2 O8]'
_cell_volume [266.1410]
_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  0.2934  0.7500  0.0393  1.0
  P  P1  2  0.2552  0.2500  0.3100  1.0
  Pb  Pb2  2  0.2218  0.7500  0.5099  1.0
  O  O3  4  0.0985  0.0324  0.2717  1.0
  O  O4  2  0.4060  0.2500  0.5171  1.0
  O  O5  2  0.4142  0.2500  0.1923  1.0
]