data_[La4Pm2Pr2Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  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 [Pmc2_1]
_cell_length_a [5.3060]
_cell_length_b [9.8007]
_cell_length_c [7.2827]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [La2PmPrHg2]
_chemical_formula_sum '[La4 Pm2 Pr2 Hg4]'
_cell_volume [378.7207]
_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
[
  La  La0  2  0.0000  0.1714  0.8325  1
  La  La1  2  0.5000  0.0577  0.5200  1
  Pr  Pr2  2  0.0000  0.4436  0.4950  1
  Pm  Pm3  2  0.5000  0.3272  0.1799  1
  Hg  Hg4  2  0.0000  0.1548  0.2722  1
  Hg  Hg5  2  0.5000  0.3573  0.7460  1
]