data_[Pr4Cu4Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Cu  1.9000  1.3500  0.8200
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [5.4125]
_cell_length_b [13.3787]
_cell_length_c [5.3660]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.1795]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [PrCuAg2]
_chemical_formula_sum '[Pr4 Cu4 Ag8]'
_cell_volume [335.8920]
_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  0.1138  0.2500  1
  Cu  Cu1  4  0.0000  0.4992  0.2500  1
  Ag  Ag2  8  0.1696  0.3345  0.0907  1
]