data_[Pr4Nd4N6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  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 [12.3411]
_cell_length_b [3.6811]
_cell_length_c [6.4204]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.3785]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pr2Nd2N3]
_chemical_formula_sum '[Pr4 Nd4 N6]'
_cell_volume [285.9418]
_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
[
  Pr  Pr0  4  0.1243  0.5000  0.8840  1.0
  Nd  Nd1  4  0.1364  0.0000  0.3582  1.0
  N  N2  4  0.2434  0.5000  0.2516  1.0
  N  N3  2  0.0000  0.0000  0.0000  1.0
]