data_[K2Li4Nb4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Li  0.9800  1.4500  0.9000
  Nb  1.6000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.0027]
_cell_length_b [18.2380]
_cell_length_c [4.0886]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [KLi2Nb2O7]
_chemical_formula_sum '[K2 Li4 Nb4 O14]'
_cell_volume [298.4786]
_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
[
  K  K0  2  0.0000  0.0000  0.0091  1.0
  Li  Li1  4  0.0000  0.2565  0.4962  1.0
  Nb  Nb2  4  0.0000  0.3839  0.0265  1.0
  O  O3  4  0.0000  0.1082  0.4932  1.0
  O  O4  4  0.0000  0.2796  0.9903  1.0
  O  O5  4  0.0000  0.3864  0.4938  1.0
  O  O6  2  0.0000  0.5000  0.9908  1.0
]