data_[K4Sn4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sn  1.9600  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.7446]
_cell_length_b [6.7517]
_cell_length_c [7.5302]
_cell_angle_alpha [96.3465]
_cell_angle_beta [115.6591]
_cell_angle_gamma [101.1420]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [KSnO2]
_chemical_formula_sum '[K4 Sn4 O8]'
_cell_volume [295.8667]
_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  2  0.2402  0.4424  0.9838  1.0
  K  K1  2  0.2803  0.9877  0.2657  1.0
  Sn  Sn2  2  0.2008  0.8854  0.7365  1.0
  Sn  Sn3  2  0.2630  0.4919  0.4997  1.0
  O  O4  2  0.0185  0.6924  0.4408  1.0
  O  O5  2  0.0509  0.2951  0.2134  1.0
  O  O6  2  0.4089  0.6865  0.7827  1.0
  O  O7  2  0.4817  0.6701  0.4082  1.0
]