data_[Pr16Ni2Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Ni  1.9100  1.3500  0.7400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [7.6482]
_cell_length_b [16.6255]
_cell_length_c [6.3530]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.7599]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Pr8NiAg2]
_chemical_formula_sum '[Pr16 Ni2 Ag4]'
_cell_volume [686.8529]
_cell_formula_units_Z [2]
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  0.2289  0.3876  0.3496  1
  Pr  Pr1  4  0.2756  0.1151  0.7162  1
  Pr  Pr2  4  0.4962  0.3032  0.0209  1
  Pr  Pr3  2  0.2174  0.5000  0.8426  1
  Pr  Pr4  2  0.2536  0.0000  0.2305  1
  Ni  Ni5  2  0.0011  0.0000  0.7143  1
  Ag  Ag6  4  0.4963  0.2216  0.5198  1
]