data_[Tb8Ta4Nb4N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ta  1.5000  1.4500  0.8200
  Nb  1.6000  1.4500  0.8200
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.3299]
_cell_length_b [13.3428]
_cell_length_c [10.4216]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Tb2TaNbN5]
_chemical_formula_sum '[Tb8 Ta4 Nb4 N20]'
_cell_volume [463.0360]
_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  0.1064  0.6904  1.0
  Tb  Tb1  4  0.0000  0.1449  0.2865  1.0
  Ta  Ta2  4  0.0000  0.2242  0.0127  1.0
  Nb  Nb3  4  0.0000  0.4702  0.4614  1.0
  N  N4  4  0.0000  0.0568  0.0589  1.0
  N  N5  4  0.0000  0.2782  0.6482  1.0
  N  N6  4  0.0000  0.3126  0.3821  1.0
  N  N7  4  0.0000  0.3721  0.0037  1.0
  N  N8  4  0.0000  0.4922  0.7800  1.0
]