data_[Pr6Zn18Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Zn  1.6500  1.3500  0.8800
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.4533]
_cell_length_b [8.9762]
_cell_length_c [13.1523]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Pr3Zn9Cu2]
_chemical_formula_sum '[Pr6 Zn18 Cu4]'
_cell_volume [525.7476]
_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  0.0000  0.0000  0.3014  1
  Pr  Pr1  2  0.0000  0.0000  0.0000  1
  Zn  Zn2  8  0.0000  0.2841  0.1314  1
  Zn  Zn3  8  0.0000  0.3572  0.3410  1
  Zn  Zn4  2  0.0000  0.5000  0.0000  1
  Cu  Cu5  4  0.0000  0.1907  0.5000  1
]