data_[K2Y2Ag2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Y  1.2200  1.8000  1.0400
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.0016]
_cell_length_b [4.1661]
_cell_length_c [9.9073]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.0173]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KYAgSe3]
_chemical_formula_sum '[K2 Y2 Ag2 Se6]'
_cell_volume [353.3211]
_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  0.2070  0.7500  0.2385  1.0
  Y  Y1  2  0.3244  0.2500  0.8543  1.0
  Ag  Ag2  2  0.0814  0.7500  0.5998  1.0
  Se  Se3  2  0.1113  0.7500  0.8722  1.0
  Se  Se4  2  0.2343  0.2500  0.5427  1.0
  Se  Se5  2  0.4586  0.2500  0.1578  1.0
]