data_[Na12Li4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Li  0.9800  1.4500  0.9000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [5.6239]
_cell_length_b [10.8319]
_cell_length_c [5.0333]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Na3LiO2]
_chemical_formula_sum '[Na12 Li4 O8]'
_cell_volume [306.6163]
_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  8  0.1669  0.1930  0.5000  1.0
  Na  Na1  4  0.0000  0.5000  0.2500  1.0
  Li  Li2  4  0.0000  0.0000  0.2500  1.0
  O  O3  8  0.2091  0.1050  0.0000  1.0
]