data_[Pm16Dy4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Dy  1.2200  1.7500  1.1310
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.9336]
_cell_length_b [14.1366]
_cell_length_c [6.4763]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.1313]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Pm4DyHg]
_chemical_formula_sum '[Pm16 Dy4 Hg4]'
_cell_volume [772.7261]
_cell_formula_units_Z [4]
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  8  0.0993  0.1889  0.0478  1
  Pm  Pm1  8  0.2165  0.3843  0.3755  1
  Dy  Dy2  4  0.0000  0.4080  0.7500  1
  Hg  Hg3  4  0.0000  0.0014  0.7500  1
]