data_[Rb2Er2Pb2O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Er  1.2400  1.7500  1.0300
  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 [7.1002]
_cell_length_b [3.5053]
_cell_length_c [9.9899]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.7770]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbErPbO3]
_chemical_formula_sum '[Rb2 Er2 Pb2 O6]'
_cell_volume [247.7640]
_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  0.3869  0.2500  0.3216  1.0
  Er  Er1  2  0.0882  0.2500  0.6350  1.0
  Pb  Pb2  2  0.2310  0.7500  0.9203  1.0
  O  O3  2  0.0041  0.2500  0.2376  1.0
  O  O4  2  0.1750  0.7500  0.5069  1.0
  O  O5  2  0.3431  0.2500  0.7997  1.0
]