data_[Pr4U4Si4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  U  1.3800  1.7500  0.9913
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.7398]
_cell_length_b [3.8690]
_cell_length_c [4.4679]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.5903]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PrUSi]
_chemical_formula_sum '[Pr4 U4 Si4]'
_cell_volume [289.2616]
_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  0.0732  0.5000  0.7543  1
  U  U1  4  0.2431  0.0000  0.8061  1
  Si  Si2  4  0.1240  0.0000  0.2689  1
]