data_[Rb2Ca2Bi2O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ca  1.0000  1.8000  1.1400
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.1363]
_cell_length_b [4.6742]
_cell_length_c [9.6440]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.7229]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbCaBiO3]
_chemical_formula_sum '[Rb2 Ca2 Bi2 O6]'
_cell_volume [276.5948]
_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  0.2343  0.2500  0.3120  1.0
  Ca  Ca1  2  0.2111  0.7500  0.9944  1.0
  Bi  Bi2  2  0.2821  0.2500  0.7441  1.0
  O  O3  2  0.1582  0.2500  0.9510  1.0
  O  O4  2  0.2543  0.7500  0.7566  1.0
  O  O5  2  0.3892  0.7500  0.2015  1.0
]