data_[Pm16Ga4Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ga  1.8100  1.3000  0.7600
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.0873]
_cell_length_b [5.0097]
_cell_length_c [7.5376]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.9030]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm8Ga2Hg]
_chemical_formula_sum '[Pm16 Ga4 Hg2]'
_cell_volume [656.8624]
_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  0.0323  0.0000  0.7518  1
  Pm  Pm1  4  0.0935  0.5000  0.4618  1
  Pm  Pm2  4  0.1686  0.5000  0.9487  1
  Pm  Pm3  4  0.1948  0.0000  0.2996  1
  Ga  Ga4  4  0.1965  0.0000  0.7044  1
  Hg  Hg5  2  0.0000  0.5000  0.0000  1
]