data_[Pr12Cu12Ru8]
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
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.1885]
_cell_length_b [10.6171]
_cell_length_c [15.6616]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pr3Cu3Ru2]
_chemical_formula_sum '[Pr12 Cu12 Ru8]'
_cell_volume [696.4579]
_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  8  0.0000  0.1321  0.5885  1
  Pr  Pr1  4  0.0000  0.4126  0.7500  1
  Cu  Cu2  8  0.0000  0.4173  0.5524  1
  Cu  Cu3  4  0.0000  0.3019  0.2500  1
  Ru  Ru4  8  0.0000  0.1681  0.1169  1
]