data_[Tb4Ce8Nb4N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ce  1.1200  1.8500  1.0800
  Nb  1.6000  1.4500  0.8200
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.5859]
_cell_length_b [13.4221]
_cell_length_c [11.3883]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [TbCe2NbN5]
_chemical_formula_sum '[Tb4 Ce8 Nb4 N20]'
_cell_volume [548.1271]
_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
[
  Tb  Tb0  4  0.0000  0.2714  0.7500  1.0
  Ce  Ce1  8  0.0000  0.1348  0.5066  1.0
  Nb  Nb2  4  0.0000  0.4831  0.2500  1.0
  N  N3  8  0.0000  0.2711  0.1039  1.0
  N  N4  8  0.0000  0.4237  0.6211  1.0
  N  N5  4  0.0000  0.0874  0.7500  1.0
]