data_[Na2Li6O7]
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 [P-1]
_cell_length_a [5.1320]
_cell_length_b [5.5192]
_cell_length_c [5.7289]
_cell_angle_alpha [77.0126]
_cell_angle_beta [70.0439]
_cell_angle_gamma [87.9128]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na2Li6O7]
_chemical_formula_sum '[Na2 Li6 O7]'
_cell_volume [148.4803]
_cell_formula_units_Z [1]
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  0.0538  0.3875  0.7738  1
  Li  Li1  2  0.1681  0.0874  0.2235  1
  Li  Li2  2  0.3150  0.9408  0.7352  1
  Li  Li3  2  0.4325  0.5460  0.2979  1
  O  O4  2  0.1981  0.7814  0.4825  1
  O  O5  2  0.3607  0.4262  0.0401  1
  O  O6  2  0.4946  0.7553  0.4904  1
  O  O7  1  0.0000  0.0000  0.0000  1
]