data_[Pr8Ag4Ge4Se20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Ag  1.9300  1.6000  1.0867
  Ge  2.0100  1.2500  0.7700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.2967]
_cell_length_b [18.1007]
_cell_length_c [11.7611]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Pr2AgGeSe5]
_chemical_formula_sum '[Pr8 Ag4 Ge4 Se20]'
_cell_volume [914.6969]
_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  0.0000  0.1188  0.6815  1.0
  Pr  Pr1  4  0.0000  0.1278  0.3002  1.0
  Ag  Ag2  4  0.0000  0.2232  0.0274  1.0
  Ge  Ge3  4  0.0000  0.4302  0.4601  1.0
  Se  Se4  4  0.0000  0.0428  0.0629  1.0
  Se  Se5  4  0.0000  0.2906  0.6754  1.0
  Se  Se6  4  0.0000  0.3144  0.3473  1.0
  Se  Se7  4  0.0000  0.3681  0.9947  1.0
  Se  Se8  4  0.0000  0.4974  0.2744  1.0
]