data_[Li2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pnnm]
_cell_length_a [3.9857]
_cell_length_b [4.8961]
_cell_length_c [2.9611]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [58]
_chemical_formula_structural [LiO2]
_chemical_formula_sum '[Li2 O4]'
_cell_volume [57.7835]
_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
[
  Li  Li0  2  0.0000  0.0000  0.0000  1.0
  O  O1  4  0.1319  0.4144  0.0000  1.0
]