data_[K2Sm2Sn2W2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sm  1.1700  1.8500  1.2290
  Sn  1.9600  1.4500  0.8300
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4_2/mmc]
_cell_length_a [6.0121]
_cell_length_b [6.0121]
_cell_length_c [8.4756]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [131]
_chemical_formula_structural [KSmSnWO6]
_chemical_formula_sum '[K2 Sm2 Sn2 W2 O12]'
_cell_volume [306.3507]
_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  0.2500  1
  Sm  Sm1  2  0.0000  0.5000  0.0000  1
  Sn  Sn2  2  0.5000  0.5000  0.2500  1
  W  W3  2  0.0000  0.5000  0.5000  1
  O  O4  8  0.2368  0.2769  0.5000  1
  O  O5  4  0.0000  0.5000  0.2704  1
]