data_[La2Tb2Cu2Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Tb  1.1000  1.7500  0.9815
  Cu  1.9000  1.3500  0.8200
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.0828]
_cell_length_b [5.9829]
_cell_length_c [8.3564]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.0902]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [LaTbCuSe4]
_chemical_formula_sum '[La2 Tb2 Cu2 Se8]'
_cell_volume [338.4713]
_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
[
  La  La0  2  0.2587  0.7500  0.0660  1.0
  Tb  Tb1  2  0.2718  0.7500  0.5667  1.0
  Cu  Cu2  2  0.2567  0.2500  0.3139  1.0
  Se  Se3  4  0.0165  0.0098  0.7418  1.0
  Se  Se4  2  0.4300  0.2500  0.6064  1.0
  Se  Se5  2  0.4302  0.2500  0.1095  1.0
]