data_[Pm4Nd8N8]
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
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.6150]
_cell_length_b [5.2020]
_cell_length_c [7.3811]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.2277]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PmNd2N2]
_chemical_formula_sum '[Pm4 Nd8 N8]'
_cell_volume [418.4649]
_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  4  0.1565  0.5000  0.0956  1
  Nd  Nd1  4  0.0073  0.0000  0.7337  1
  Nd  Nd2  4  0.1638  0.5000  0.5743  1
  N  N3  4  0.0033  0.5000  0.2476  1
  N  N4  4  0.1658  0.0000  0.5848  1
]