data_[Pr8Cd20Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Cd  1.6900  1.5500  1.0900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.7229]
_cell_length_b [17.8436]
_cell_length_c [9.9811]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pr2Cd5Hg]
_chemical_formula_sum '[Pr8 Cd20 Hg4]'
_cell_volume [841.1523]
_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  0.0000  0.0000  1
  Pr  Pr1  4  0.0000  0.1949  0.2500  1
  Cd  Cd2  8  0.0000  0.1921  0.6045  1
  Cd  Cd3  8  0.0000  0.3551  0.5304  1
  Cd  Cd4  4  0.0000  0.3909  0.2500  1
  Hg  Hg5  4  0.0000  0.4542  0.7500  1
]