data_[K8Ti2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ti  1.5400  1.4000  0.8517
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-42m]
_cell_length_a [6.4183]
_cell_length_b [6.4183]
_cell_length_c [11.0484]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [121]
_chemical_formula_structural [K4TiO4]
_chemical_formula_sum '[K8 Ti2 O8]'
_cell_volume [455.1389]
_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  4  0.0000  0.0000  0.2919  1.0
  K  K1  4  0.0000  0.5000  0.0000  1.0
  Ti  Ti2  2  0.0000  0.0000  0.0000  1.0
  O  O3  8  0.1660  0.1660  0.9029  1.0
]