data_[Tb4As4N8O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  As  2.1800  1.1500  0.6600
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [7.2737]
_cell_length_b [5.7681]
_cell_length_c [5.6129]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [TbAsN2O]
_chemical_formula_sum '[Tb4 As4 N8 O4]'
_cell_volume [235.4931]
_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  2  0.0000  0.1827  0.5276  1
  Tb  Tb1  2  0.5000  0.1940  0.4309  1
  As  As2  4  0.2475  0.3341  0.9708  1
  N  N3  4  0.2081  0.3988  0.3055  1
  N  N4  2  0.0000  0.1986  0.9488  1
  N  N5  2  0.5000  0.3640  0.0601  1
  O  O6  4  0.2970  0.1013  0.7401  1
]