data_[K8Ti4Pb4O20]
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
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.4039]
_cell_length_b [13.6159]
_cell_length_c [12.8247]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [K2TiPbO5]
_chemical_formula_sum '[K8 Ti4 Pb4 O20]'
_cell_volume [594.3823]
_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
[
  K  K0  4  0.0000  0.0810  0.6820  1.0
  K  K1  4  0.0000  0.1598  0.2918  1.0
  Ti  Ti2  4  0.0000  0.4894  0.4490  1.0
  Pb  Pb3  4  0.0000  0.2213  0.0225  1.0
  O  O4  4  0.0000  0.0483  0.0114  1.0
  O  O5  4  0.0000  0.2748  0.6356  1.0
  O  O6  4  0.0000  0.3160  0.4186  1.0
  O  O7  4  0.0000  0.3827  0.9986  1.0
  O  O8  4  0.0000  0.4933  0.8144  1.0
]