data_[Tb2Nd2Se2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.6389]
_cell_length_b [4.0958]
_cell_length_c [7.7803]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.7264]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [TbNdSeO2]
_chemical_formula_sum '[Tb2 Nd2 Se2 O4]'
_cell_volume [201.5128]
_cell_formula_units_Z [2]
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  0.3262  0.7500  0.5816  1.0
  Nd  Nd1  2  0.3112  0.7500  0.0729  1.0
  Se  Se2  2  0.0480  0.2500  0.7545  1.0
  O  O3  2  0.4830  0.2500  0.1276  1.0
  O  O4  2  0.4870  0.2500  0.6148  1.0
]