data_[Na8Ru4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ru  2.2000  1.3000  0.6610
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [5.7969]
_cell_length_b [9.3757]
_cell_length_c [5.4176]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.6278]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Na2RuO3]
_chemical_formula_sum '[Na8 Ru4 O12]'
_cell_volume [271.7803]
_cell_formula_units_Z [4]
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
[
  Na  Na0  4  0.0000  0.0817  0.7500  1
  Na  Na1  4  0.0000  0.2395  0.2500  1
  Ru  Ru2  4  0.0000  0.4105  0.7500  1
  O  O3  8  0.1935  0.4341  0.5061  1
  O  O4  4  0.2500  0.2500  0.0000  1
]