data_[Nd4Eu2Nb4N12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Eu  1.2000  1.8500  1.1985
  Nb  1.6000  1.4500  0.8200
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [4.0432]
_cell_length_b [4.0432]
_cell_length_c [19.7871]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Nd2Eu(NbN3)2]
_chemical_formula_sum '[Nd4 Eu2 Nb4 N12]'
_cell_volume [323.4722]
_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
[
  Nd  Nd0  4  0.0000  0.0000  0.1780  1
  Eu  Eu1  2  0.0000  0.0000  0.0000  1
  Nb  Nb2  4  0.0000  0.0000  0.3970  1
  N  N3  8  0.0000  0.5000  0.0856  1
  N  N4  4  0.0000  0.0000  0.2997  1
]