data_[K4Sr4Ag4F16]
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
  Ag  1.9300  1.6000  1.0867
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.4175]
_cell_length_b [7.5838]
_cell_length_c [10.5397]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [KSrAgF4]
_chemical_formula_sum '[K4 Sr4 Ag4 F16]'
_cell_volume [592.8882]
_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  0.2500  0.8632  1.0
  Sr  Sr1  4  0.0000  0.0000  0.5000  1.0
  Ag  Ag2  4  0.2500  0.2500  0.2500  1.0
  F  F3  8  0.0000  0.0374  0.2709  1.0
  F  F4  8  0.2067  0.2500  0.5091  1.0
]