data_[Gd6Nb6N12O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Gd  1.2000  1.8000  1.0750
  Nb  1.6000  1.4500  0.8200
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P6_3/mmc]
_cell_length_a [5.7260]
_cell_length_b [5.7260]
_cell_length_c [14.1123]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [194]
_chemical_formula_structural [GdNbN2O]
_chemical_formula_sum '[Gd6 Nb6 N12 O6]'
_cell_volume [400.7165]
_cell_formula_units_Z [6]
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
[
  Gd  Gd0  4  0.3333  0.6667  0.6238  1
  Gd  Gd1  2  0.0000  0.0000  0.2500  1
  Nb  Nb2  4  0.3333  0.6667  0.1452  1
  Nb  Nb3  2  0.0000  0.0000  0.0000  1
  N  N4  12  0.1580  0.3161  0.0924  1
  O  O5  6  0.0187  0.5094  0.7500  1
]