data_[Pm8Sn10Hg6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sn  1.9600  1.4500  0.8300
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.7484]
_cell_length_b [5.2010]
_cell_length_c [11.4916]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.2899]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm4Sn5Hg3]
_chemical_formula_sum '[Pm8 Sn10 Hg6]'
_cell_volume [702.0001]
_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  0.1326  0.0000  0.7396  1
  Pm  Pm1  4  0.1355  0.0000  0.0913  1
  Sn  Sn2  4  0.0903  0.5000  0.2638  1
  Sn  Sn3  4  0.0947  0.5000  0.9156  1
  Sn  Sn4  2  0.0000  0.0000  0.5000  1
  Hg  Hg5  4  0.2360  0.0000  0.3814  1
  Hg  Hg6  2  0.0000  0.5000  0.5000  1
]