data_[Si4Ag4F20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.6313]
_cell_length_b [6.8686]
_cell_length_c [7.2380]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.3212]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [SiAgF5]
_chemical_formula_sum '[Si4 Ag4 F20]'
_cell_volume [396.9508]
_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
[
  Si  Si0  4  0.0000  0.0000  0.0000  1.0
  Ag  Ag1  4  0.0000  0.4898  0.2500  1.0
  F  F2  8  0.0527  0.2373  0.0017  1.0
  F  F3  8  0.2025  0.0617  0.5982  1.0
  F  F4  4  0.0000  0.0314  0.2500  1.0
]