data_[Tb2Eu2Cu2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Eu  1.2000  1.8500  1.1985
  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 [8.2539]
_cell_length_b [4.0327]
_cell_length_c [9.1203]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.6639]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [TbEuCuSe3]
_chemical_formula_sum '[Tb2 Eu2 Cu2 Se6]'
_cell_volume [294.9837]
_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  0.3182  0.7500  0.3368  1
  Eu  Eu1  2  0.1981  0.2500  0.7568  1
  Cu  Cu2  2  0.0791  0.2500  0.0848  1
  Se  Se3  2  0.0813  0.2500  0.3596  1
  Se  Se4  2  0.2337  0.7500  0.0175  1
  Se  Se5  2  0.4329  0.7500  0.6640  1
]