data_[Rb2Ni2Ru2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ni  1.9100  1.3500  0.7400
  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 [5.7666]
_cell_length_b [6.0054]
_cell_length_c [7.1742]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.7828]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbNiRuO4]
_chemical_formula_sum '[Rb2 Ni2 Ru2 O8]'
_cell_volume [242.2888]
_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  0.3949  0.2500  0.8947  1
  Ni  Ni1  2  0.2017  0.7500  0.4323  1
  Ru  Ru2  2  0.0804  0.2500  0.2806  1
  O  O3  4  0.2081  0.5152  0.2322  1
  O  O4  2  0.1313  0.2500  0.5468  1
  O  O5  2  0.2466  0.7500  0.7226  1
]