data_[K2Rb2Ru2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  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 [6.4779]
_cell_length_b [6.4853]
_cell_length_c [7.7136]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.6760]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KRbRuO4]
_chemical_formula_sum '[K2 Rb2 Ru2 O8]'
_cell_volume [306.9898]
_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
[
  K  K0  2  0.1880  0.2500  0.5330  1.0
  Rb  Rb1  2  0.2943  0.2500  0.0654  1.0
  Ru  Ru2  2  0.2550  0.7500  0.3094  1.0
  O  O3  4  0.0716  0.5318  0.2596  1.0
  O  O4  2  0.4092  0.7500  0.5480  1.0
  O  O5  2  0.4312  0.7500  0.1707  1.0
]