data_[Tb6Y18N18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Y  1.2200  1.8000  1.0400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [6.1465]
_cell_length_b [6.1465]
_cell_length_c [25.9746]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [TbY3N3]
_chemical_formula_sum '[Tb6 Y18 N18]'
_cell_volume [849.8298]
_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
[
  Tb  Tb0  6  0.0000  0.0000  0.3333  1
  Y  Y1  18  0.0001  0.6808  0.1021  1
  N  N2  18  0.0001  0.3673  0.0602  1
]