data_[Pr4Si8Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [6.9499]
_cell_length_b [4.2584]
_cell_length_c [11.0364]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [PrSi2Ag]
_chemical_formula_sum '[Pr4 Si8 Ag4]'
_cell_volume [326.6240]
_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
[
  Pr  Pr0  4  0.1431  0.2500  0.8536  1.0
  Si  Si1  4  0.0291  0.2500  0.3373  1.0
  Si  Si2  4  0.1794  0.2500  0.1457  1.0
  Ag  Ag3  4  0.1496  0.2500  0.5572  1.0
]