data_[Pm2Pr8Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [6.3254]
_cell_length_b [8.7442]
_cell_length_c [9.5872]
_cell_angle_alpha [64.9732]
_cell_angle_beta [73.8009]
_cell_angle_gamma [69.7552]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [Pm(Pr2Hg)2]
_chemical_formula_sum '[Pm2 Pr8 Hg4]'
_cell_volume [445.2873]
_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  1  0.0823  0.2266  0.6163  1
  Pm  Pm1  1  0.1674  0.7516  0.9198  1
  Pr  Pr2  1  0.2507  0.9648  0.2182  1
  Pr  Pr3  1  0.5410  0.4757  0.6948  1
  Pm  Pm4  1  0.5714  0.9946  0.8156  1
  Pr  Pr5  1  0.7034  0.5431  0.0558  1
  Pr  Pr6  1  0.7151  0.1770  0.3926  1
  Pr  Pr7  1  0.7390  0.1249  0.0370  1
  Pr  Pr8  1  0.8577  0.6811  0.3121  1
  Pr  Pr9  1  0.9534  0.7154  0.6356  1
  Hg  Hg10  1  0.1498  0.3104  0.9073  1
  Hg  Hg11  1  0.2342  0.3496  0.2141  1
  Hg  Hg12  1  0.3693  0.5464  0.3867  1
  Hg  Hg13  1  0.4153  0.8887  0.5440  1
]