data_[Pr4Ga4Ag8Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Ga  1.8100  1.3000  0.7600
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [10.5235]
_cell_length_b [12.9961]
_cell_length_c [8.2143]
_cell_angle_alpha [90.0000]
_cell_angle_beta [126.0102]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [PrGa(AgSe2)2]
_chemical_formula_sum '[Pr4 Ga4 Ag8 Se16]'
_cell_volume [908.7490]
_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  0.2474  0.2639  0.2536  1
  Ga  Ga1  4  0.0690  0.9660  0.3626  1
  Ag  Ag2  4  0.0569  0.4500  0.3798  1
  Ag  Ag3  4  0.1727  0.2110  0.6095  1
  Se  Se4  4  0.0527  0.2780  0.8031  1
  Se  Se5  4  0.0531  0.7809  0.2967  1
  Se  Se6  4  0.1990  0.0040  0.7320  1
  Se  Se7  4  0.2330  0.0381  0.2765  1
]