data_[Pm12Hg4C2]
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
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [7.0231]
_cell_length_b [7.2656]
_cell_length_c [12.3675]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.4157]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Pm6Hg2C]
_chemical_formula_sum '[Pm12 Hg4 C2]'
_cell_volume [520.6132]
_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  0.1742  0.7087  0.9552  1
  Pm  Pm1  4  0.2525  0.2221  0.9579  1
  Pm  Pm2  4  0.3497  0.5171  0.7589  1
  Hg  Hg3  4  0.2258  0.5473  0.2511  1
  C  C4  2  0.5000  0.0000  0.5000  1
]