data_[Na6Ni4O10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ni  1.9100  1.3500  0.7400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.3075]
_cell_length_b [6.3509]
_cell_length_c [6.9521]
_cell_angle_alpha [107.3559]
_cell_angle_beta [96.3752]
_cell_angle_gamma [107.3167]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na3Ni2O5]
_chemical_formula_sum '[Na6 Ni4 O10]'
_cell_volume [208.3335]
_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
[
  Na  Na0  2  0.2054  0.9032  0.3892  1.0
  Na  Na1  2  0.3810  0.2891  0.7985  1.0
  Na  Na2  1  0.0000  0.0000  0.0000  1.0
  Na  Na3  1  0.0000  0.5000  0.0000  1.0
  Ni  Ni4  2  0.2024  0.4057  0.4059  1.0
  Ni  Ni5  2  0.3972  0.7948  0.7957  1.0
  O  O6  2  0.0987  0.8900  0.6931  1.0
  O  O7  2  0.1207  0.4839  0.6815  1.0
  O  O8  2  0.3276  0.3452  0.1489  1.0
  O  O9  2  0.3491  0.8785  0.0798  1.0
  O  O10  2  0.4770  0.7182  0.5239  1.0
]