data_[K6Sr3Sn9O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sr  0.9500  2.0000  1.3200
  Sn  1.9600  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [6.5655]
_cell_length_b [6.5655]
_cell_length_c [18.6898]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [K2SrSn3O8]
_chemical_formula_sum '[K6 Sr3 Sn9 O24]'
_cell_volume [697.6964]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.1269  1
  K  K1  3  0.0000  0.0000  0.4966  1
  Sr  Sr2  3  0.0000  0.0000  0.8851  1
  Sn  Sn3  9  0.0025  0.5012  0.9997  1
  O  O4  9  0.0379  0.5189  0.2740  1
  O  O5  9  0.1835  0.3670  0.0544  1
  O  O6  3  0.0000  0.0000  0.2687  1
  O  O7  3  0.0000  0.0000  0.7310  1
]