data_[K4Ru4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ru  2.2000  1.3000  0.6610
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.6747]
_cell_length_b [10.8538]
_cell_length_c [5.6203]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.6786]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Ru2O7]
_chemical_formula_sum '[K4 Ru4 O14]'
_cell_volume [460.0614]
_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  4  0.0000  0.3092  0.5000  1
  Ru  Ru1  4  0.2173  0.0000  0.9140  1
  O  O2  8  0.2257  0.1359  0.7420  1
  O  O3  4  0.1311  0.5000  0.8063  1
  O  O4  2  0.0000  0.0000  0.0000  1
]