data_[Rb2Ba2Ru2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ba  0.8900  2.1500  1.4900
  Ru  2.2000  1.3000  0.6610
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.6873]
_cell_length_b [6.0130]
_cell_length_c [7.8241]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.4684]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbBaRuO4]
_chemical_formula_sum '[Rb2 Ba2 Ru2 O8]'
_cell_volume [305.9622]
_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  0.2475  0.7500  0.0466  1.0
  Ba  Ba1  2  0.2105  0.7500  0.5451  1.0
  Ru  Ru2  2  0.2606  0.2500  0.3171  1.0
  O  O3  4  0.0468  0.0343  0.2855  1.0
  O  O4  2  0.3898  0.2500  0.5479  1.0
  O  O5  2  0.4179  0.2500  0.1603  1.0
]