data_[Pm6Nd8Hg6N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Hg  2.0000  1.5000  1.2450
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.0282]
_cell_length_b [5.0684]
_cell_length_c [24.7525]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Pm3Nd4Hg3N2]
_chemical_formula_sum '[Pm6 Nd8 Hg6 N4]'
_cell_volume [630.8146]
_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  0.0000  0.0000  0.4033  1
  Pm  Pm1  2  0.0000  0.5000  0.0000  1
  Nd  Nd2  4  0.0000  0.0000  0.0964  1
  Nd  Nd3  4  0.0000  0.5000  0.2005  1
  Hg  Hg4  4  0.0000  0.5000  0.3251  1
  Hg  Hg5  2  0.0000  0.5000  0.5000  1
  N  N6  4  0.0000  0.5000  0.1009  1
]