data_[Pm4Hg4Bi2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Hg  2.0000  1.5000  1.2450
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.1772]
_cell_length_b [4.6421]
_cell_length_c [7.4109]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.2936]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm2Hg2Bi]
_chemical_formula_sum '[Pm4 Hg4 Bi2]'
_cell_volume [315.4641]
_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
[
  Pm  Pm0  4  0.1725  0.5000  0.7997  1
  Hg  Hg1  4  0.1476  0.5000  0.3821  1
  Bi  Bi2  2  0.0000  0.0000  0.0000  1
]